A dealer logo in the corner of a listing photo is allowed on most of the sites an independent dealer posts to, rejected outright on two of them, and unaddressed on a few more. The two that reject it are Google vehicle ads and eBay. Cars.com sells the overlay as a feature but bans using the picture to promote a price, an offer, or financing. CarGurus goes after phone numbers and other contact details baked into the image, not the logo as such. Facebook Marketplace, Craigslist, and Autotrader publish no rule either way.
One photo, a dozen destinations, and no agreement about what may sit in the corner of it.
What follows is each destination's published policy, quoted from the page it lives on, as read on September 21, 2026. Where a page would not load or says nothing, the post says that instead of guessing.
| Destination | Verdict | What the published rule covers |
|---|---|---|
| Google vehicle ads | Prohibited | No overlaid watermarks, no superimposed logos or text; a logo used as the photo is a placeholder |
| Google Merchant Center products | Prohibited | Promotional text, watermarks, overlays, and logos on product images cause disapproval |
| eBay Motors | Prohibited | Watermarks of any type, added text or marketing material, contact information in images |
| Cars.com | Restricted | Overlays are a first-party feature; media may not promote offers, other prices, or financing |
| CarGurus | Restricted | Embedded contact information may be removed if it looks like a way around lead routing |
| OfferUp, consumer account | Restricted | No extra text, stickers, filters, or contact details in photos |
| OfferUp, verified auto dealer | Allowed with limits | Text, banners, stickers, and pricing are fine if the vehicle stays the main focus |
| Autotrader | No published rule found | Dealer advertising guidelines and the visitor agreement say nothing about overlays |
| Facebook Marketplace | No published rule found | Commerce Policies do not mention watermarks, logos, or contact details in images |
| Craigslist | No published rule found | Terms, prohibited list, and image help say nothing about overlays |
Google vehicle ads and Merchant Center
Google's image guidelines for vehicle ads list the reasons an image gets disapproved, and the first two are "No overlaid watermarks" and "No superimposed logos or text." The third covers placeholders, and the page spells out that "using just the brand or dealer logo will be disapproved." A logo on the building behind the car is only discouraged: "Logos or branding in the background" is on the list where Google "may use technical solutions like background blur or auto-cropping" rather than reject the offer. The same page says "Automatic image improvements aren't supported for Vehicle ads images yet," so Google will not clean a watermark off a vehicle image for you. The image is either clean or it is disapproved.
If the same photo URL also feeds a regular Merchant Center product listing, the automatic image improvements page is blunter: "Promotional text, watermarks, overlays, and logos are not allowed on product images. If your images contain these details, your products will be disapproved and won't show to customers."
eBay Motors
eBay's picture policy lists what is not allowed, and the list includes "Photos with added text, artwork or marketing material" and "Watermarks of any type, including those used for ownership attributions." A small copyright mark meant to deter photo theft is still a watermark. The images, videos and text policy adds that "for Pre-owned vehicle sales, images must be of the actual vehicle offered for sale," and separately bans "images or audio content including any contact information, web links, URLs or calls to action that ask viewers to take actions on other sites." A phone bar breaks both rules at once. eBay's help page on adding pictures gives the practical reason: added "badges, logos, copyright notices or watermarks" can "affect your listing's placement in search results."
Cars.com
Cars.com is the odd one out, because the company both sells overlays and restricts what they may say. Its Vehicle Listing Policy, last revised June 23, 2026, requires that listing media "accurately depict the vehicle the Dealer is selling" and then draws the line: "Dealers are prohibited from using any Content to promote special offers, prices other than the price offered in the listing, or to model potential payments or financing." Nothing there bans a logo. The company's own AccuTrade help center walks dealers through applying overlays to inventory photos before syndication, as a transparent PNG at a recommended 2048 by 1536 pixels, and the AccuTrade hub describes "applying branded overlays" as part of pushing "fully merchandised inventory directly to leading listing sites like Cars.com." So a corner logo or a dealership name bar is a supported feature, and a bar reading "$299/mo" or "0% APR" is what the listing policy prohibits.
Autotrader
Autotrader's public dealer rules do not mention photos. The vehicle advertisements and pricing guidelines for dealers, effective July 1, 2020, cover VIN and mileage accuracy, removing sold cars within 24 hours, and unconditioned advertised prices, and say nothing about watermarks, logos, or overlays. The live autotrader.com legal pages would not load when this was researched, so the Visitor Agreement was read from an archived copy with a February 28, 2024 effective date. It says "You alone are responsible for the material you post, including listing information and photos of your vehicle" and has no watermark clause. Photo specifications may exist behind the dealer login, and the live agreement has been updated since that capture; neither could be read.
Cox, Autotrader's parent, speaks on the product side instead. Its HomeNet image overlays product page sells "dealership branding" overlays, and a Dealer.com article on real photos from the same company notes that embedded branding "can be useful for aggregator sites like Autotrader." That is a vendor assuming overlays are normal on Autotrader; Autotrader itself has published nothing that allows or bans them.
CarGurus
CarGurus targets contact details, not logos. Its Guidelines for Dealer Pricing and Marketing, dated August 2, 2024, say that "CarGurus may exclude or remove from the Site embedded contact information in images" when it "determines in its sole discretion that such information is embedded with the intent of circumventing the CarGurus lead routing process." The live page returned an error when this was researched, so that quote comes from an August 2026 archive capture of the same URL. A bar with your phone number is the example they name. A logo with no phone number, URL, or email is not addressed in the published text either way, and whether CarGurus edits the pixels or pulls the image is not documented.
OfferUp
OfferUp has two rulebooks, and the account type decides which one applies. The consumer Posting Rules say "don't add stickers, filters, or extra text" and "Don't include writing, phone numbers, email addresses, or physical addresses to photos or videos," then add that "Exceptions may apply for verified businesses, verified auto dealerships, and garage/yard/estate/moving sale listings." The Listing Rules for Motors for verified auto dealers say "Photos may contain text, banners, stickers, and pricing info, as long as the vehicles are the main focus," and "Photos must depict the actual vehicle for sale, not just advertisements or promotions." A dealer posting from a consumer account gets the consumer rule.
Facebook Marketplace and Craigslist
Neither publishes a watermark rule. Meta's Commerce Policies define what can be sold and list prohibited goods, and the text says nothing about watermarks, logos, or contact information in listing images. Meta's help page on rejected listings says only that "We may reject your listing if we find that it doesn't follow our Commerce Policies or Community Standards." Several dealer-tool vendors claim that logos get Marketplace listings removed. Those are vendor marketing pages, and nothing Meta publishes confirms them.
Craigslist is in the same position. The terms of use, the prohibited list, and the image upload help contain no watermark, logo, or overlay item. The prohibited list does ban "postings or email the primary purpose of which is to drive traffic to a website," which is the closest published rule a photo that is mostly a phone number and URL could trip. AutoManager sells a Craigslist-specific overlay option, which shows Craigslist accepts those pixels in practice and nothing more.
What the evidence says about whether it helps
No public study isolates a logo, watermark, or phone bar and measures leads, clicks, or buyer trust. The numbers that get quoted for it measure something else. Cox's HomeNet reported up to 5% more vehicle detail page views across 1,600-plus Autotrader listings in September 2017, and the treatment there was background replacement; no overlay was involved. Dealer.com's real-photos article reports used and certified listings with actual photos being 40% more likely to get a lead than listings with stock photos, which says nothing about what is stamped on those photos. A vAuto marketing page states that 80% of consumers would rather see photos with information overlays and links no method, sample, or study, so treat it as a product claim until one appears.
The theft argument is in the same position. Fake listings that borrow a real dealership's name and phone number are documented, but no source found for this post measured whether a watermark reduces how often photos get copied. A mark travels with the stolen file, which is the whole case for it, and that case is unmeasured.
What to do with all of that
Keep the promotion out of the picture. A price, a monthly payment, or an APR baked into the image is the one thing Cars.com prohibits outright, and it is disapproved on Google and eBay regardless. Those numbers belong in the listing fields, where they can change with the price without re-exporting a single photo.
Leave the car as the subject. Every rule that permits an overlay, from OfferUp's "as long as the vehicles are the main focus" to Cars.com's "accurately depict the vehicle," is written around that idea, and Google's placeholder rule shows what happens when the logo takes over the frame.
Keep a clean copy of every photo. The same image is allowed on Cars.com, unaddressed on Autotrader, removable on CarGurus, and rejected on Google and eBay, so the working setup is two files per photo and a per-destination choice about which one goes where. AutoManager's WebManager documents that arrangement: it creates two copies, "one with overlays and one without," and lets you send overlays to specific export sites or only on the first photo. LotReady works the same way, stamping a corner mark or a bar with your phone number while always keeping a clean copy of the same photo.
Check the current page before relying on any of this. Cars.com revised its listing policy in June 2026, OfferUp updated its Motors rules in July 2025, and the Google pages above are living help articles, so the text quoted here on September 21, 2026 may not be the text that applies to the photo you upload next month.