LinkedIn Text Ad Specs: Headline, Description, Logo and URL
LinkedIn text ad specs call for a headline of 25 characters and a description of 75 characters, plus a 100x100 pixel logo saved as a JPG or PNG file of up to 2MB. The landing page URL must start with http:// or https://, and the destination field takes up to 2000 characters.
Checked October 2026. Sources are listed at the end of the page.
Text ads are the smallest LinkedIn ad format: a short headline, one line of description and a small square logo. Because there is so little room, every character and every pixel counts. This guide lists the LinkedIn text ad specs from LinkedIn's own text ads specifications page, shows how to write copy that fits, and explains how to make the logo so it stays sharp at a small size. LinkedIn files the headline and description numbers under Text Recommendations and the logo numbers under Design Recommendations, and it points to its Help Center for the full technical specifications.
| Element | LinkedIn spec | Notes |
|---|---|---|
| Headline | 25 characters | Listed under Text Recommendations |
| Description | 75 characters | Listed under Text Recommendations |
| Logo file type | JPG or PNG | Listed under Design Recommendations |
| Logo file size | 2MB | Keep the file well under this for fast upload |
| Logo dimensions | 100x100 pixels | Square, so design for a square crop |
| Landing page URL prefix | http:// or https:// | Required |
| Destination URL length | 2000 characters | Applies to the destination field URL |
LinkedIn Text Ad Specs: Headline, Description, Logo and URL
Decide the one thing the ad must say
A text ad has room for one idea. Pick the single offer or reason to click, such as a free trial, a webinar seat or a guide, and the one audience it is for. If you have two offers, plan two ads rather than squeezing both into one.
Write a headline of 25 characters or fewer
Put the offer or the benefit in the headline, not your brand name, because the logo already shows who you are. Short verbs and numbers help. Write three or four options and keep the ones that read clearly at 25 characters, including spaces.
Write a description of 75 characters or fewer
Use the description to say who the offer is for and what happens after the click. End with a clear action, such as book a demo or download the guide. Paste the headline and description into the free LinkedIn Ad Character Counter to check both against LinkedIn's recommended lengths before you upload.
Make a 100x100 logo that reads at small size
Export a square logo or brand mark at 100x100 pixels as a JPG or PNG under 2MB. Fine text and thin lines disappear at this size, so use a simple mark with strong contrast against a plain background. Look at the file at its real size before you upload it.
Check the landing page URL
Make sure the URL starts with http:// or https://. Tracking parameters can make a link long, so keep the full destination URL inside LinkedIn's 2000-character limit for the destination field, and open the link once to confirm it loads the right page.
Draft the copy and visuals in Infinall AI
In Infinall AI, save your brand once from your website, then ask Infinall Chat for headline and description options in your brand voice and check each one against the table above. The Free plan gives 1,000 credits every month with no card. Build and launch the text ad itself in LinkedIn's ad tools, which charge the spend to your own ad account.
Why the character counts matter more in a text ad
In a single image or video ad, the picture does most of the work and the text supports it. In a text ad, the words carry almost the whole message, and the space is tight: a 25-character headline is roughly three to five short words, and a 75-character description is one sentence. LinkedIn lists these numbers as text recommendations, so text past them may not show the way you expect. The safe approach is to treat 25 and 75 as the limit and write to fit.
A few habits make this easier:
- Drop filler words such as very, really and simply.
- Use digits instead of written numbers.
- Cut the brand name from the headline when the logo already shows it.
- Read the headline and description together: they should make one complete message, not repeat each other.
Headline and description examples that fit
Here is how one offer can be written to fit the text ad specs. These are examples of the format, not results from any campaign.
- Headline: Free B2B ad templates (21 characters). Description: Ready-made LinkedIn ad layouts for SaaS teams. Download the pack today. (71 characters)
- Headline: Join our hiring webinar (23 characters). Description: Learn how small teams hire faster. Save your seat for the live session. (71 characters)
Count your own lines with a character counter rather than by eye, because spaces and punctuation count too.
Getting the logo right
The text ad image is a small square, 100x100 pixels, in JPG or PNG, with a 2MB file size limit. Most brand logos are wide, so a full wordmark becomes unreadable when it is squeezed into a square this small. Use the icon or monogram version of your logo instead, centred with some padding around it. PNG keeps flat colours and edges crisp, and JPG works well for photos. If your source image is large, scale it down in one step to 100x100 so it is not stretched or cropped by the upload.
Text ads compared with other LinkedIn ad formats
Text ads have the shortest copy of any LinkedIn format. For comparison, LinkedIn recommends a 70-character headline and 150 characters of introductory text for single image ads, and a 45-character headline for each carousel card. If your message needs a large image, a longer explanation or several products, a sponsored content format will usually suit it better, and the guides below list those specs. Text ads suit simple offers where a short line and a recognisable logo are enough to earn the click.
Where Infinall AI fits
Infinall AI does not buy media for you, and LinkedIn charges any ad spend to your own ad account. What it can do is help you prepare the parts: save your brand once, then get on-brand copy options from Infinall Chat and make images from the same saved brand. Ad Spy lets you search the ads a competitor is running on LinkedIn, Meta and Google, which is a quick way to see how others write short ad copy. Pro is $10 for the first month, then $30 a month, with 3,000 credits a month.
Frequently asked questions
What is the headline length for a LinkedIn text ad?
LinkedIn's text ads specifications page lists 25 characters for the headline, under Text Recommendations.
How long can a LinkedIn text ad description be?
LinkedIn lists 75 characters for the description. Write it as one short sentence with a clear action.
What image size does a LinkedIn text ad use?
The logo is 100x100 pixels, in JPG or PNG format, with a file size of up to 2MB.
What are the URL rules for LinkedIn text ads?
The landing page URL must start with http:// or https://, and the destination field URL can be up to 2000 characters.
Can Infinall AI run a LinkedIn text ad for me?
Infinall AI helps you write the copy and make visuals from your saved brand. It does not buy media, and the ad spend is charged by LinkedIn to your own ad account.
Sources and checks
Every price, rating and number on this page comes from the source pages below, checked October 2026. Prices and plans change often, so confirm on the vendor's own page before you buy.
- LinkedIn: Text Ads specifications, checked October 2026
- LinkedIn: Single Image Ads specifications, checked October 2026
- LinkedIn: Carousel Ads specifications, checked October 2026
- Infinall docs: Paid ads from the Social Hub, checked October 2026
- Infinall docs: Search ads in Ad Spy, checked October 2026
- Infinall pricing, checked October 2026