LinkedIn Ads Policy: The Image Rules That Get a Creative Rejected
Why a LinkedIn image gets rejected, and the file that clears each clause.
Your single-image ad came back rejected, and the note in Campaign Manager names the Advertising Policies without pointing at a pixel. The account still spends. The image is what failed. A weight-loss line, a badge and a discount sit on the photograph, and each one maps to a clause LinkedIn publishes. Here is the image, the clauses, and the edit that clears each.
The short version
- A result written on the photograph is a health claim, even when the picture is only a bowl of food.
- Featured on LinkedIn is not the one phrase the trademark clause allows.
- A discount in the image has to be on the page the ad opens. The pixel minimum and the thumbnail line are two different sentences.
Checked against LinkedIn's Advertising Policies, last revised 18 November 2025, the Guidelines for health and weight loss ads (the page showed "Last updated: 2 months ago"), and the Single image ads advertising specifications page, on 26 October 2026. Every rule quoted below comes from those pages.
The image
Northline sells weekday lunches to HR teams. The creative is a square single-image ad: a grain bowl on a desk, no one in the frame. Over the photograph sit four things that are not in the lunch. An all-caps weight claim. A row of eight fire emojis. A badge reading Featured on LinkedIn. A red offer for 50% off this week. Northline is fictional, and every frame here was composed for this piece.
The claim
The clause sits in Prohibited Content, under Health Matters:
Ads promoting unrealistic or misleading claims about health improvements, including those related to diet and weight loss, are prohibited.
Source: LinkedIn Advertising Policies, Health Matters.
In plain English: the words on the image are the ad. A bowl of greens does not make a weight-loss promise compliant.
LinkedIn's health guidelines page gives the shape of the violation in its own example:
Ads for miracle diet products that guarantee unrealistic results or promote an unhealthy relationship with food. For example, Lose 22 kg in one week with detox tea!
Source: Guidelines for health and weight loss ads.
That example is theirs. Twelve pounds this month is the same shape: a fixed loss in a fixed time. The clause does not wait for the numbers to match. The same page also bars images depicting idealized results.
The fix
Take the claim off, and the emojis, the badge and the discount with it. What stays is the bowl and a line about the lunch: planned by Friday, for the floor. That line describes the weekday order the page offers. It does not describe a result. The badge and the discount have their own sentences, and they are next.
Preflight does not check LinkedIn. It reads a still against the published rules for the five networks on the Preflight page, and returns pass, limited, fail or needs review, with the clause behind each verdict. If this file also runs on Meta or Google Ads, check it there before you upload. A pass on those placements is not a LinkedIn approval.
The badge
The second mark is the pill. It uses the name, which is enough.
The editorial section allows one use of the name:
You may use the phrase "find me on LinkedIn" in accordance with our trademark guidelines, but otherwise do not use "LinkedIn" or refer to LinkedIn (the corporation, brand or site) in your ad. Do not imply affiliation with or an endorsement by LinkedIn.
Source: LinkedIn Advertising Policies, Editorial.
Featured on LinkedIn is not that phrase. It tells the member the company endorsed the lunch. The clause bars the implication, logo or no logo.
The discount
The third mark is the offer. The policy treats a price in the ad as a fact the landing page has to show.
Do not advertise prices or offers that are inaccurate - any advertised discount, offer or price must be easily discoverable from the link in your ad.
Source: LinkedIn Advertising Policies, Fraud and Deception.
On this sample the order page offers a weekday lunch and no 50% discount. The image and the page disagree, which is the mismatch the clause describes. The same section requires the product to match the ad, and any claim to have factual support. A weight result has neither.
What the spec page actually says
Buyers often treat the pixel table as the policy. It is a specification page, and it opens with its own rejection line:
Ads are rejected if they do not meet our advertising guidelines.
Source: Single image ads advertising specifications.
Then it publishes the limits. File type is JPG, PNG, or GIF. Animated GIF images must be 250 frames or shorter. File size is 5 MB. A square runs from a minimum of 360 x 360 pixels to a recommended 1200 x 1200, and a maximum of 4320 x 4320. Horizontal is recommended at 1200 x 628. Vertical is recommended at 720 x 900. Separate from all of that:
Images less than 401 pixels wide display as a thumbnail image.
Source: LinkedIn Help, single image ad specifications.
A 320 pixel square is under the published minimum of 360 x 360, and it is also under 401 pixels wide. The minimum sits inside the guidelines the page says get an ad rejected. The 401 pixel line says the image displays as a thumbnail. Keep them separate.
Neither page checked today publishes a text-percentage cap. Type in the image is covered by the editorial line on excessive capitalization and emojis, and by whatever the words claim.
What to run instead
These are lower-risk directions a designer can brief from the same bowl. None of them is an approval.
- The bowl filling the frame, one sentence about the lunch, no result. That is the edit above.
- No type in the file at all. Put the lunch line in the headline field. The spec page says: "Use up to 70 characters to avoid truncation (200 character maximum)."
- Three containers on a Friday flat-lay, named as the days they cover, no body and no outcome.
- An office kitchen counter, the meal as the subject, no people and no side-by-side.
- A team-order line, such as order for the floor by Thursday. No discount unless the page has one.
The same still can be checked on the networks Preflight actually covers. LinkedIn is not one of them. The Preflight docs list the five networks and the file types the check accepts.
Other rules that catch a wellness image on LinkedIn
The claim is the one that fails this image. The neighbours catch the next version.
Before-and-after images are named on the health guidelines page:
Images that depict before-and-after weight loss, beauty results, or magnify undesirable physical features. For example, wrinkles, stretch marks, hair loss.
Source: LinkedIn, Guidelines for health and weight loss ads.
This image does not do that. A waist crop or a side-by-side would. The same page says ads must not idealize or criticize a person's weight, complexion, condition, or other physical attributes. Describe the lunch, and leave the body out of the frame. On another network, see Pinterest's weight-loss and body-image rules.
Excessive type is its own clause, even after the claim is gone:
Ads may not use incorrect spelling, grammar, punctuation, excessive emojis, capitalization or unrelated hashtags.
Source: LinkedIn Advertising Policies, Standard Text.
Eight fire emojis and an all-caps line are what that clause is aimed at. The introductory text field is a different limit: "Use up to 150 characters including spaces, emojis, and punctuation to avoid truncation (3,000 character maximum). You can use up to 10 emojis." That cap covers the introductory text. The image has no published emoji count.
This lunch does not trip the next clause. A vulgar or sexually suggestive frame would.
Ads must not be offensive to good taste. This means ads must not be, for example, hateful, vulgar, sexually suggestive or violent.
Source: LinkedIn Advertising Policies.
LinkedIn also reserves the right to restrict advertising related to any health matter. A match to today's wording can still be restricted later.
If the product sits in a restricted category, these image rules are not the whole job. See the LinkedIn guide for regulated industries. For a Google display file, see the display image specs post. For the same kind of rejection on X, see the X image rules.
Before you resubmit
- Read the image for a health result, a time-bound weight claim, or a before-and-after.
- Read it for the word LinkedIn. The one allowed phrase is find me on LinkedIn.
- Read it for a price or a percent off, then open the landing page and find the same offer.
- Check capitalization and emojis in the image, not only in the introductory text.
- Confirm the file is JPG, PNG, or GIF, a GIF is 250 frames or shorter, and the file is 5 MB or under.
- Confirm a square is at least 360 x 360. Under 401 pixels wide, it displays as a thumbnail.
- Put any legally required language in the introductory text, which is where LinkedIn says to put it.
- Hover the rejected status in Campaign Manager and read the reason before you resubmit a guess. LinkedIn says: "If your ad is rejected, we'll provide the reason in Campaign Manager when you hover over the ad status and also via email." It also says: "We strive to review ads as soon as possible and usually do so within 24 hours." That is not a launch date.
FAQ
Why was my LinkedIn ad rejected?
The notice names the Advertising Policies and leaves the pixel to you. Hover the ad status in Campaign Manager. LinkedIn says the reason is there, and in the email. On an image, start with a health claim, the LinkedIn name used as an endorsement, a price the landing page does not show, and all-caps type or a stack of emojis.
Can I mention LinkedIn in the image?
One phrase is allowed: find me on LinkedIn, in line with their trademark guidelines. Otherwise do not use LinkedIn, or refer to the corporation, the brand or the site, in the ad, and do not imply an endorsement. Featured on LinkedIn fails that test. Leaving the logo out does not fix the words.
Does LinkedIn allow weight-loss claims in an image?
The Advertising Policies prohibit unrealistic or misleading claims about health improvements, including diet and weight loss. The health guidelines name before-and-after weight images as a violation. A bowl of food with a pounds-per-month line is still that claim. State what is in the lunch, with no result.
What size should a LinkedIn single image be?
For a square, the specifications page recommends 1200 x 1200 pixels, minimum 360 x 360, maximum 4320 x 4320. Horizontal is recommended at 1200 x 628. Vertical is recommended at 720 x 900. Under 401 pixels wide, the image displays as a thumbnail. JPG, PNG, or GIF, at 5 MB. An animated GIF must be 250 frames or shorter.
The sample and the order page were built for this piece. Preflight checks published creative rules for the placements it lists, and it does not check LinkedIn. The network makes the final call. This is not legal advice. LinkedIn is a trademark of its owner. HawtAds is not affiliated with or endorsed by LinkedIn.
