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Image Editing & Retouching

Copyright and Image Licensing: What Actually Works

Six common myths about copyright and image licensing, why each fails under US law, and the practical routine that keeps your website and ads clean.

Imogen Clarke Imaging & 3D Lead 29 min read 26 views
Copyright and Image Licensing: What Actually Works

Every image on a website, in an ad or on a product page belongs to someone. Copyright and image licensing are the two halves of the system that decides who that someone is and what everyone else is allowed to do with the picture. Copyright is the ownership right that US law gives the creator of an original photograph or artwork. A license is the permission, usually written and usually limited, that lets someone other than the owner use it in a defined way: in certain media, in certain places, for a certain period.

This matters to anyone who publishes images for a business. Marketing teams pull visuals for blog posts and social campaigns, e-commerce teams reuse supplier photography, agencies hand finished assets to clients, and in-house designers composite stock elements into banners. Using an image without the right license is one of the most common legal problems websites run into, and the fix after the fact is almost always more expensive and more awkward than getting it right up front. It matters just as much to photographers and studios on the other side of the table, because whether a work was registered with the Copyright Office decides what its owner can actually recover when someone takes it.

The trouble is that most of what people "know" about image rights comes from forum threads and office folklore. This guide takes the misconceptions we hear most often in production work, explains why each one fails, and sets out the practice that actually protects you. It is written from a production studio's point of view, not a law firm's: it will help you run a clean, defensible image workflow and recognize when a question has become a legal one that needs a lawyer.

Before taking the myths apart, it helps to have the basic mechanics straight, because nearly every mistake comes from confusing one of these pieces with another.

Copyright is automatic

Under US law, copyright protection begins automatically the moment an original work is fixed in a tangible form. For a photograph, that is the instant the shutter fires and the image is recorded to a sensor or film. For an illustration, it is when the drawing exists in a file or on paper. No notice, no registration, no watermark and no filing is required for the right to exist. The owner is normally the person who created the work, unless it was made by an employee within the scope of their job or the rights were transferred in writing.

Registration is a separate step with separate consequences

Registration with the US Copyright Office does not create the copyright, but it controls what the owner can do with it in court. For US works, the owner must register before filing an infringement lawsuit. And the two remedies that make most image cases worth pursuing, statutory damages and recovery of attorney's fees, are available only if the work was registered before the infringement began or within three months of the work's first publication. Without timely registration, an owner is generally limited to proving actual damages, such as the license fee they lost, which for a single image can be modest.

A license is a defined permission, not a transfer of ownership

When you "buy" a stock photo or pay a photographer for usage, you are almost never buying the copyright. You are buying a license: a set of permissions that specifies the permitted uses, the media, the territory and the duration. Anything outside those four boundaries is unlicensed, even if you paid for the image and even if the use seems similar to what you paid for. Ownership only moves through a written assignment signed by the owner, or through the narrow work-made-for-hire rules.

Fair use is a defense, not a permission

Fair use lets some uses of copyrighted material proceed without permission, but it is decided case by case, by a court, weighing four statutory factors: the purpose and character of the use, the nature of the copyrighted work, the amount used, and the effect of the use on the market for the original. The U.S. Copyright Office maintains a fair use index summarizing court decisions, and reading a few entries is the fastest way to see how fact-specific the outcomes are. You cannot know in advance that a use is fair; you can only argue that it was after someone objects.

The table below maps the terms you will see in license agreements to what they actually control. Keep it next to you when reading a stock agreement or a photographer's usage quote.

License termWhat it controlsTypical wordingCommon way it gets breached
Permitted useWhat the image may be used forEditorial only; commercial; advertising; merchandise; templates for resaleAn editorial-only image used on a product landing page or in an ad
MediaWhere the image may appearWeb and social; print; out-of-home; broadcast; packagingA web-licensed photo reused in a printed catalog or trade show banner
TerritoryGeographic scopeWorldwide; North America; a named countryA regionally licensed campaign image running in an international ad account
DurationHow long the permission lastsPerpetual; one year from first use; campaign periodA time-limited image left live on the site after the term ends
ExclusivityWhether others can license the same imageNon-exclusive (standard); exclusive in a category or territoryAssuming a competitor cannot use the same stock photo
ModificationsWhether you may alter, crop or compositeAlterations permitted; no derogatory use; no use in logos or trademarksBuilding a logo or a trademarked mascot around a stock illustration
Print run or impressionsVolume caps on some licensesUp to a set number of copies or impressions, extended license above thatA packaging run that exceeds the standard license's cap

Myth: If an image has no copyright symbol, no watermark and no "all rights reserved" line, the owner has not claimed it, so anyone can use it.

Reality: Copyright attaches automatically when an original image is fixed in a tangible form. The absence of a notice tells you nothing about whether it is protected. You should assume every image you did not create is owned by someone and needs a license.

This myth survives because older US law did require notice, and because the web makes images look like public material. Neither point helps you. Modern protection does not depend on a notice, and an image being visible in search results or on a social feed is a statement about how it is displayed, not about who owns it. A photograph in a Google Images grid, a Pinterest board or an Instagram post is almost always there because its owner, or someone who copied it, chose to publish it, not because they gave it away.

The practical consequence is that "taking images from search results or social media" is the single most common way businesses end up with unlicensed images on their sites. It usually happens innocently: a content writer needs a header image for a post at 5 p.m., finds a good one, and drops it in. Nobody records where it came from, and two years later a demand letter arrives referencing that exact file.

What "free" images actually are

Images that are genuinely free to use fall into a few defined groups, each with its own conditions:

  • Public domain works: works whose copyright has expired, works dedicated to the public domain by their owner, and many works created by US federal government employees in the course of their duties. Even here, check whether the specific copy you found is a faithful reproduction or a new work, and whether identifiable people or trademarks appear in it.
  • Openly licensed works: images released under licenses such as Creative Commons. These are licenses, not the absence of rights, and they come with conditions: attribution in a specified form, no commercial use, no derivatives, or share-alike obligations, depending on the variant.
  • Free stock libraries: sites that offer images under their own license terms. Those terms can change, and they often exclude uses such as selling unaltered copies, implying endorsement, or using recognizable people in sensitive contexts.

In every case, the rule is the same: know the source, save the terms that applied on the day you downloaded the image, and keep that record with the file.

Watermarks and metadata cut the other way

When an image does carry a watermark or embedded copyright metadata, removing it is not a neutral cleanup step. US law separately protects copyright management information, and knowingly stripping a credit line, watermark or rights field to conceal infringement can create liability on its own. If your retouching team is asked to remove a watermark from an image that has not been licensed, the correct answer is to stop and license it. Our guide to image metadata and rights explains which IPTC fields carry creator, copyright and usage information and how to keep them intact through editing and export.

What to do and what to avoid with copyright and image licensing, side by side
Good practice against the usual mistakes, from the sources listed below.

Myth: As long as you name the photographer or link to the original source, you are allowed to use the image, and the owner should be glad of the exposure.

Reality: Credit is not a license. Attribution only satisfies the terms of a license that specifically requires it, such as certain Creative Commons variants. Without a license, a credited image is still an unlicensed image, and the credit simply documents where you took it from.

This is the most sincere of the myths, because people who credit images are trying to do the right thing. But assuming credit or a link replaces a license misunderstands what copyright controls. The owner's exclusive rights include reproducing the work and displaying it publicly. Putting a name under the image does not change the fact that you reproduced and displayed it. In a dispute, a credit line can even make matters simpler for the owner, because it removes any question about which image was used and where it came from.

"Exposure" is also not something the owner agreed to accept as payment. Professional photographers and illustrators license images for a living; the value of their work is the license fee, and a link from a business blog does not replace it.

When credit is actually required

Credit matters in two situations, and in both it is an obligation rather than a substitute:

  1. The license requires it. Creative Commons attribution licenses, many editorial licenses and some commissioned-photography agreements specify a credit line, sometimes in exact wording and placement. If you use the image without the required credit, you have stepped outside the license, and the use is unlicensed again.
  2. Your contract with a creator promises it. Photographers often negotiate credit on editorial or portfolio-visible work. Record the agreed format in the job brief so designers and developers apply it consistently.

A useful habit is to separate the two questions on every image request: "Do we have a license?" comes first, and "Does the license require credit, and in what form?" comes second. Treating them as one question is exactly how this myth causes damage.

Myth 3: Marketing Use Is Covered by Fair Use

Myth: Using a photo in a blog post, a social post or a small ad is fair use, especially if you are a small business, you are not selling the image itself, or you only use a thumbnail.

Reality: Fair use is decided case by case on four statutory factors, and commercial marketing sits on the weak side of most of them. Relying on fair use for commercial marketing is a gamble you can only lose after the fact. License the image instead.

Look at how the four factors usually play out for a business using someone else's photograph to promote itself:

  • Purpose and character of the use. Courts ask whether the use is commercial and whether it transforms the original by adding new expression, meaning or purpose. A photo used to decorate a blog post or make an ad more attractive is typically serving the same purpose the photographer created it for: to be looked at. That is not transformative, and it is commercial.
  • Nature of the copyrighted work. Creative works such as composed photographs and illustrations sit closer to the core of copyright protection than factual works.
  • Amount used. Marketing uses usually take the whole image. Cropping or shrinking it rarely helps, because the heart of a photograph is usually the whole frame.
  • Effect on the market. This factor often decides image cases. If businesses could use stock-style photos in marketing without paying, the market for licensing those photos would collapse, and that is exactly the market the owner relies on.

Being a small business, using the image for a short time, or not making money directly from the post are not factors in the statute. They may influence how a dispute is settled, but they do not turn an unlicensed use into a permitted one.

Where fair use genuinely applies

Fair use does real work in commentary, criticism, news reporting, teaching and scholarship. A review that reproduces a book cover to discuss the book, or an article analyzing a controversial advertising image, may well be fair. Even then, the outcome depends on the facts, which is why the Copyright Office's fair use index is useful reading: it shows how similar-sounding uses reach different results. If a piece of content genuinely depends on commenting on a specific image, get legal advice before you publish rather than after a complaint.

Thumbnails, embeds and screenshots

Teams often ask whether technical workarounds change the answer. Screenshots of an image are still copies of it. Embedding social posts through a platform's official embed tool raises questions that courts have handled differently, and the platform's terms do not grant you rights the original poster did not have. For marketing, the reliable approach is the simplest one: use images you created, commissioned with a clear agreement, or licensed for that use.

Myth 4: A License Bought Once Covers Every Future Use

Myth: Once you have paid for an image, it is yours to use across the website, ads, print, packaging and future campaigns for as long as you like.

Reality: Every license sets its own permitted uses, media, territory and duration. Reusing images licensed for one campaign in another, moving a web image into print, or keeping a time-limited image live after its term ends can all be infringement, even though you paid.

This myth causes more trouble for established businesses than any other, because it hits teams who did everything right the first time. The image was properly licensed for a spring web campaign; eighteen months later, a designer finds it in the shared drive, puts it on a trade show banner, and nobody checks the original terms. The license was real, but the new use is outside it.

The uses that most often fall outside a license

  • Paid advertising. Some licenses distinguish organic editorial or website use from paid advertising, and some rights-managed licenses price each placement separately. Before an image goes into an ad account, confirm the license covers advertising. Our guide to image editing for social ads covers the production side of repurposing imagery for paid placements.
  • Print and packaging. A license for web use does not automatically extend to printed catalogs, brochures, point-of-sale material or packaging, and standard stock licenses often cap print runs. When a web image is headed for a catalog, check both the license and the resolution; the production considerations are covered in image editing for print catalogs.
  • Products for resale. Putting an image on merchandise, templates or anything the buyer is paying for primarily because of the image usually requires an extended or merchandise license.
  • Third-party platforms. Marketplaces and retail partners may require you to grant them rights to use your listing images. You can only grant rights you have, so if the product photography was licensed from a third party, check that the license allows it. See our guide to image editing for marketplaces for the production side of listing imagery.
  • Expired terms. Rights-managed and commissioned licenses often run for a fixed period. When the period ends, the image must come down from every place it appears: website, social archives, ad libraries, sales decks and partner sites.

Why the record has to travel with the file

The root cause behind this myth is operational, not legal. License terms live in an email, a purchase receipt or a stock account, while the image file travels on its own through shared drives, design tools and content systems. By the time someone reuses it, the terms are nowhere in sight. The fix is to make the license record part of the asset: a consistent rights field in the file's metadata, a license ID in the filename or the digital asset management record, and a copy of the license terms stored alongside the master. Our guide to versioning image files explains how to keep masters and derivatives linked so that information survives each export and crop.

Myth 5: Paying a Photographer Means You Own the Photos

Myth: If you commissioned and paid for a shoot, the copyright in the photos belongs to your company.

Reality: Unless there is a signed written agreement that assigns the copyright to you, or the work genuinely qualifies as work made for hire, the photographer usually keeps the copyright and you receive a license, often an implied one with unclear limits. Get written agreements for commissioned photography that state exactly what you get.

Freelance photographers, illustrators and retouchers are independent contractors, not employees. Under US law, a work created by an independent contractor is owned by the contractor unless one of two things applies. Either the work falls into one of a short list of categories that can be work made for hire by written agreement, which does not include most standalone commercial photography, or the creator signs a written transfer of copyright. A handshake, an invoice marked "paid" or an email saying "the photos are yours" is not a reliable substitute for a signed assignment.

Without a clear agreement, the client typically has an implied license to use the photos for the purpose everyone understood at the time of the shoot. The trouble is that "the purpose everyone understood" is exactly what gets argued about later, when the photos appear in a national ad campaign, on packaging, or in a franchise partner's materials.

Assignment or license: choosing what to ask for

Owning the copyright is not always necessary, and it usually costs more. A broad, well-drafted license can serve a business perfectly well. The decision depends on how central the images are to your brand and how widely they will be used.

The case for asking for a full assignment is strongest when the images are central to the brand. Ownership lets you use, modify, sublicense and enforce the images without going back to the creator; it simplifies assets such as mascots, signature product imagery and anything that may become a trademark; it makes transfers cleaner if the business is sold or restructured; and it lets you register the work and pursue infringers directly.

The case against is mostly cost and flexibility. Photographers often charge substantially more for a buyout, because they give up future licensing income, and many established photographers decline full assignments on principle, which narrows your choice of creators. Ownership also brings responsibilities, including registration and enforcement, that a license holder can ignore. For short-lived campaign imagery, a clearly scoped, time-limited license is usually the better value.

What a commissioned-photography agreement should cover

Whichever route you choose, the agreement should answer these questions in writing before the shoot:

  • Who owns the copyright, and if it is the photographer, what exactly the license covers: uses, media, territory, duration and exclusivity.
  • Whether you may edit, retouch, crop, composite and adapt the images, and whether you may hire other retouchers to do so.
  • Whether the photographer may use the images in a portfolio, and whether that is delayed until after launch.
  • Credit requirements, if any.
  • Who obtains model releases and property releases, and who keeps copies of them.
  • What happens to outtakes and raw files, and whether they may be licensed to others.

The same thinking applies to the creative brief. A clear written scope protects both sides: our guide to image briefs for retouchers shows how to specify deliverables, and the usage section of a brief is the natural place to restate the rights you are buying.

Model and property releases are a separate question

Copyright is only one layer. A photograph of a recognizable person used commercially usually also needs a model release, because of that person's rights over the commercial use of their likeness. Photographs featuring private property, artwork, or distinctive products and logos can raise their own issues. A copyright license from the photographer does not include permission from the people or owners in the frame; stock libraries mark images as released or editorial-only for exactly this reason.

Editing, Compositing and AI: Where Derivative Rights Come In

Retouchers and designers hear a related claim constantly: "Just change it enough and it's ours." It is not a separate licensing myth so much as an extension of the ones above, but it touches the work that editing studios do every day, so it deserves its own explanation.

The owner's rights include the exclusive right to prepare derivative works based on the original. Cropping, recoloring, retouching, compositing, flipping or restyling an image produces a derivative, and making it without permission is itself an infringement. There is no fixed percentage of change that frees an image from its source, and the familiar "change it by 30 percent" rule has no basis in the law. If the original remains recognizable in the result, the result depends on the original's rights.

This applies to legitimate retouching and compositing as well. When a studio composites a licensed stock sky into a real estate photo, or places a product cutout onto a stock lifestyle background, the finished image carries the license terms of every element in it. The most restrictive term wins: if one layer is editorial-only, the whole composite is. Our guide to image compositing covers the production workflow, and the rights side is simple to state: log the source and license of every layer, not just the base image.

AI generation does not route around the question

Generative tools add a newer version of the same myth: that feeding an image to an AI model and generating a "new" version launders the rights. If the output reproduces or closely imitates a specific protected image, the same derivative-work concerns apply. The Copyright Office has also taken the position that material generated by AI without sufficient human authorship is not protected by copyright, which matters if you expect to own, register or enforce rights in AI-generated visuals. Before building a campaign on generated imagery, read our guide to working with AI image generators, and check the generator's own terms on commercial use.

Myth 6: Registration Is Paperwork Only Large Companies Need

Myth: Since copyright is automatic, registering images with the Copyright Office is pointless bureaucracy for anyone smaller than a major publisher.

Reality: Registration decides what you can actually do when someone copies your work. For US works, you must register before you can sue for infringement, and statutory damages and attorney's fees are available only if registration came before the infringement or within three months of publication.

For businesses that create original imagery, such as product photography, lookbooks, architectural and real estate photography, illustrations and campaign art, registration is the difference between having rights on paper and having rights you can enforce. Consider what happens without it. A competitor lifts your product photos for their own listings. You can send a takedown notice to the platform, and that often works. But if the competitor ignores it, or the copying is on their own site, your options narrow. You would have to register before suing, and because the infringement began before registration, you would usually be limited to actual damages, which may not cover the cost of the case. With timely registration, the calculation changes, and that difference often shapes whether an infringer takes a demand seriously.

Deciding what to register

You do not need to register every file. Focus on work that is original, commercially important and likely to be copied:

  • Hero product photography and signature campaign imagery.
  • Original illustrations, brand characters and artwork.
  • Photographic series you license to others, such as a stock collection or editorial archive.
  • Images published on channels where copying is common, such as marketplaces and social platforms.

The Copyright Office offers group registration options for photographs that can make registering a shoot or a batch of published images more practical than registering each image individually. The exact eligibility rules, limits and fees are set by the Office and change over time, so check its current guidance on the Copyright Office website rather than relying on a figure you read elsewhere.

Timing matters most. Because of the three-month window after publication, the most efficient routine for a studio or brand is to register in batches on a regular cycle, for example each month or each quarter for everything published in that period, so that nothing important drifts outside the window.

Worked Example: Auditing the Images on a Company Website

To make this concrete, here is an illustrative audit of the kind a mid-sized e-commerce brand might run before a site redesign. The figures are realistic but invented for the example; they do not describe a real client.

The brand's site and social archive contain 420 images in active use. The team exports every image URL from the content management system, matches files against the digital asset manager and the stock accounts, and sorts them into groups:

GroupImagesRights status foundAction
In-house product photography190Shot by employees; owned by the companyRegister the 60 hero images published in the last three months; add rights metadata to all 190
Commissioned lifestyle shoots85Two photographers; one signed assignment, one invoice onlyKeep the 40 covered by assignment; negotiate a written license covering current and planned uses for the other 45
Paid stock images70Licenses found for 64; 6 purchased under a former employee's accountRecover or re-license the 6; confirm 11 used in ads are covered for advertising
Free-library and openly licensed images35Terms saved for 20; 15 with no recordRe-verify the 15 against the source; replace any that cannot be traced
Unknown origin40No source found; several found on other sites through reverse image searchRemove from the site and replace with owned or licensed images

The results reveal the patterns this article describes. The largest risk is not the stock library, which was mostly well documented, but the 40 images of unknown origin, almost all of them added to old blog posts. The second risk is the lifestyle shoot with no written agreement: the brand has been using those images in paid ads and a printed lookbook, uses the photographer may reasonably argue were never discussed. The third is operational: six licenses tied to a departed employee's personal login, which the company cannot easily prove it holds.

Replacing 40 images is a manageable production job, especially if the brand already has unused frames from its own shoots. Retouching and adapting owned photography, for instance with image masking to place existing product shots on new backgrounds, is usually faster and cheaper than sourcing and clearing new third-party images. The more important outcome is the process change: every image added after the audit enters the asset manager with a source, license ID, permitted uses and an expiry date where one applies.

If you run a similar audit, work in order of exposure rather than folder structure. Start with images in paid ads and on the homepage and top landing pages, where an unlicensed image is most visible, then cover product and category pages, then the blog archive, then social history. Record the date of each check so a later reviewer knows what was verified and when.

Handling an Infringement Demand, and Other Times to Bring in Help

Sooner or later, many businesses receive a letter or email claiming that an image on their site is used without permission and asking for payment. These demands vary widely, from a photographer who found their work on your blog to agencies that monitor the web on behalf of rights holders. Some are clearly valid; some overreach. The worst responses are to ignore it or to pay immediately without checking.

A calm, documented response protects your position:

  1. Do not delete the evidence before recording it. Screenshot the page, note the image URL and when it was added, and save the file. Then take the image down promptly; continuing to display it after notice looks bad whatever the merits.
  2. Find your license record. Check the asset manager, stock accounts and purchase records. If you have a license that covers the use, the matter may end with a copy of it.
  3. Check the claim itself. Does the sender identify the image precisely? Do they claim to own it or to represent the owner? Is there evidence of registration, and when? The registration date affects what the owner could recover.
  4. Bring in a lawyer before negotiating. An intellectual property attorney can assess the claim's strength and the realistic exposure. The cost of advice is usually small compared with overpaying, or underestimating, a valid claim.
  5. Fix the process that let it happen. A single unlicensed image usually points to a gap in how images enter your workflow.

Beyond demands, bring in legal help when you are commissioning work you need to own outright, since the assignment has to be drafted properly, and when you start licensing your own images to others, where you become the party who has to define uses, media, territory and duration clearly. A studio can manage production, metadata and records; the contract language itself belongs with counsel.

What to Do Instead: A Working Image Rights Routine

The myths above share a root: treating image rights as a question you answer once, at the moment of download, rather than as information that travels with every file through its whole life. The correct practice is less about legal knowledge than about a routine that every person who touches images follows.

Build rights into intake

Every image should enter your systems through one path, and that path should capture its rights. At intake, record the source, the creator, the license type, a license or order ID, the permitted uses, media, territory and duration, any credit requirement, and whether model or property releases apply. Write the key facts into the file's embedded metadata as well as the asset manager, so they survive if the file is copied out of the system.

Check at every new use

A license check is not a one-time event. When an image moves into an ad, a print piece, packaging, a partner channel or a new campaign, someone should compare the new use against the recorded terms. Build that step into your proofing and approval workflow; our guide to client proofing for image sets shows where approvals naturally sit, and a rights check belongs at the same gate.

Track expiry dates

Any license with a term needs a calendar reminder set before its end date, with enough lead time to either renew it or find every place the image appears and remove it. "Remove images promptly when a license ends" sounds simple, but images tend to linger in ad libraries, email templates, PDFs and partner sites long after the main web page is updated.

Prefer images you own

The cleanest rights position is original imagery created by employees or commissioned under a clear written agreement. For many businesses, investing in one well-planned shoot and then extending it through professional editing produces more usable assets, with fewer rights questions, than a stream of individual stock purchases. That is the core of what our image editing and graphic design services are built around: getting the most out of imagery you already have the right to use.

  • Assume every image you did not create is protected, whether or not it shows a notice.
  • Never source images from search results or social media for business use.
  • Keep a license record, including source, license ID, uses, media, territory and duration, with every image you use.
  • Treat credit as a license condition to fulfill, never as a substitute for a license.
  • Do not rely on fair use for commercial marketing; license the image instead.
  • Check the license terms before each new use, especially ads, print, packaging and new campaigns.
  • Get written agreements for commissioned photography that state ownership or the exact license, editing rights and releases.
  • Log the source and license of every layer in a composite, not just the base image.
  • Register important original work with the Copyright Office, ideally within three months of publication.
  • Set reminders for license expiry and remove images everywhere they appear when a term ends.
  • Keep watermarks and rights metadata intact through editing and export.
  • Bring in a lawyer when you receive a demand, commission work you need to own, or license your own images to others.

None of this requires a legal department. It requires a consistent intake step, a rights field that nobody is allowed to leave blank, and a habit of asking "what does the license say?" before an image goes anywhere new. Teams that build that habit rarely see demand letters, and when one does arrive, they can answer it in minutes with a license on file. For more on the production practices that sit alongside image rights, browse our image editing and retouching articles.

Where this comes from

The figures and practices above come from the sources listed.

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Frequently asked questions

Not unless you also have a license. Credit only satisfies a license that requires attribution, such as some Creative Commons licenses. Without a license, a credited image is still used without permission.
Usually not for a business blog. Fair use is decided case by case on four factors, and decorative commercial use of a whole photo tends to weigh against it. License the image or use one you own.
Not automatically. A freelancer normally keeps the copyright unless they sign a written assignment, and you receive a license whose scope may be unclear. Put ownership or the exact license terms in a written agreement before the shoot.
Copyright exists without registration, but for US works you must register before suing for infringement. Statutory damages and attorney's fees are only available if registration came before the infringement or within three months of publication, so register important work promptly.
Only if the original license covers the new use, media, territory and time period. Check the recorded terms first, especially if the new use is paid advertising, print or packaging, and license again if it falls outside them.
Record the page and image, take the image down, and look for your license record. Check whether the sender identifies the image and their ownership, then speak to an intellectual property lawyer before paying or negotiating.
No. Cropping, retouching, compositing or restyling someone else's image creates a derivative work, and the owner controls derivatives. A composite carries the license terms of every element in it.
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Imogen Clarke

Stills, retouching and real-time 3D. Writes about color management, asset pipelines and getting heavy visual work into a browser.

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