There is nothing more frustrating for a marketer than to finish editing a video ad, upload it to Campaign Manager, LinkedIn and then get a “rejected” notice or have it compressed due to file size or other technical details. Specifications are changed so often that even the most seasoned marketers double-check everything before uploading vedio on linkedIn.
In this article, you’ll find all the necessary information regarding the 2026 LinkedIn video ad specs that would ensure your video content gets approved and performs better by taking advantage of the recommended dimensions, length, file size, format, and other essential factors.
Why Specs Are Important
A video ad that has incorrect specifications can either get rejected or automatically compressed when uploaded to LinkedIn. Such compression is particularly noticeable on a platform like LinkedIn that has high production value and a strong emphasis on quality.
A correct aspect ratio is also essential to maximize the space within the ad platform and increase watch time. All things considered, ensuring that the video meets the technical specifications is vital to avoid technical rejections or compression and optimize the performance based on the space and engagement level.
The Complete Specification List
Format
MP4 is the recommended video format for LinkedIn, and while MOV is allowed, MP4 files are less likely to have processing errors. Encoding method should also be H.264.
Size
The acceptable file size is 75Kb – 200 Mb for LinkedIn video ads. Note that the “native” video posts (unpaid type) have a five GB limit, which is substantially higher than what video ads allow. Therefore, it is essential to edit a longer or heavier organic post before using it as an ad.
Length
According to LinkedIn specifications, a video ad can be as short as three seconds and as long as thirty minutes. However, the platform recommends 15 to 30 seconds for the best engagement, and note that a video shorter than thirty seconds will automatically loop until at least thirty seconds have passed since the beginning of the viewing.
Frame Rate
To avoid additional compression, it is essential to make sure that the frame rate does not exceed 30 fps.
Aspect Ratios and Dimensions
There are several key aspects to consider when it comes to aspect ratios for LinkedIn video ads. First, make sure to select one based on the recommended display area for the ad type. The most common aspect ratios include the following:
- 16:9 Landscape: 1920 x 1080 px (displayed in the feed preview), with a minimum of 640 x 360 px. This is the recommended ratio for desktop viewing since it covers the area of native link previews in the LinkedIn feed.
- 1:1 Square: 1080 x 1080 px.It provides a higher scroll stop rate but is only suitable for mobile viewing.
- 4:5 Vertical: 1080 x 1350 px. This is the recommended aspect ratio for mobile feed placements, and it fills almost the entire mobile display area, without going into LinkedIn’s vertical feed space.
- 9:16 Full Vertical: 1080 x 1920 px. It is designed exclusively for LinkedIn’s full vertical video feed and is only available on mobile devices.
The absolute minimum resolution on the shortest side is 360 px, but it is better to use a higher resolution if possible since 720p will already look somewhat pixelated on a desktop display. In short, the best practice is to always export videos at a resolution higher than the minimum required.
What Is the Best Aspect Ratio to Use?
If you only have one video ad production for a campaign, it is better to use the 1:1 aspect ratio since it provides a decent scroll stop rate and is easier to watch on mobile devices without additional cropping. If the budget allows, it is better to create both versions of the video ad (square and vertical) and let Campaign Manager select the best ratio based on the placements.
Video Ad Formats
Sponsored Content Video Ads
These are the standard video ad placements within the feed and should follow the technical specifications outlined above.
Thought Leader Ads
This newer feature allows companies to promote their content by “sponsoring” organic posts from other LinkedIn users. Since the content has already been published on another LinkedIn page, it must use the organic publishing specs. In other words, the thought leader ad will have LinkedIn native video specs, not the sponsored content ones.
Conversation and Message Ads
These ads appear within the LinkedIn messenger inbox and provide a more personal, one-on-one experience. They are best used with shorter, more casual video content.
Captions and Accessibility
While captions are not required for LinkedIn video ads, they are an excellent way to increase engagement since a significant portion of LinkedIn users watch videos with the sound off, especially during work hours. However, it is essential to make sure that the captions are burned in since the LinkedIn caption feature only allows the viewer to toggle captions on or off, while burned captions are permanent and always visible.
The Most Common Errors
- Uploading a larger file than twenty MB without additional compression.
- Using MOV instead of MP4 or having inconsistent processing results.
- Having more than 30 fps, which leads to additional compression.
- Using only landscape videos and missing out on mobile impressions due to cropping.
- Having important text or elements get cut off due to different aspect ratios.
- Forgetting to add captions, thus losing engagement with the significant portion of LinkedIn’s sound-off audience.
Optimization Tips for B2B Audiences
While the technical specifications play a significant role in a video ad’s ability to pass review, the engagement optimization is achieved through production quality and creative specs. Since LinkedIn is a professional platform, the audience is not as tolerant of hard-sell approaches.
Grab Attention During the First Three Seconds
Since LinkedIn video ads autoplay without sound, it is essential to create a hook during the first three seconds that would encourage viewers to turn on the sound or engage with the video.
Keep It Simple and Focus on One Message
As mentioned earlier, it is best to keep video ads within the fifteen to thirty-second window. Inevitably, most creators try to promote multiple products/services within one video, but in reality, a video ad is most effective when it promotes one idea and one CTA.
Design For Sound-Off Experience
While it may seem counterintuitive, design your video around the idea that the viewer has turned off the sound. A good test is to imagine that you muted the video and review it based on the captions and text elements. Does it convey the intended message?
Testing and Iteration
It is always tempting to rely on a single video ad and keep reusing it for different campaign variations, hoping that they would perform better organically or with minor changes. However, it is much more effective to take one concept and A/B test different versions, including aspect ratios, length, and other elements. Two variations of the same video ad (one at fifteen seconds and one at thirty seconds) can provide extremely valuable insights for future edits and budgets.
Comparison With Other Ad Types
It is also essential to keep in mind how LinkedIn video ad specification compares to other ad types, including single image, carousel, and document ads.
Single Image Ad Campaigns
- Landscape image: 1200 x 627 px (1.91:1 ratio)
- Square image: 1200 x 1200 px
- Image formats: JPG, PNG, or other standard image formats
- Size: No more than 5 MB for a single image.
Carousel Ads Campaigns
- At least two and no more than ten cards per campaign
- Each image must be at least 1080 x 1080 px and placed in a JPG or PNG format.
Document Ads Campaigns
- Supported formats: PDF, DOCX, and PPTX.
- Maximum size: 100 MB.
Other Video Specifications
- Duration: 3 sec – 30 min
- Aspect ratio: 16:9, 1:1, 4:5, and 9:16 (1920 x 1080 px, 1080 x 1080 px, 1080 x 1350 px, 1080 x 1920 px respectively).
- Container format: MP4.
- Size: No more than 200 Mb.
With all of these considerations in mind, it becomes much easier to decide which format to choose for an ad campaign. Video ads tend to provide the best engagement on LinkedIn due to the B2B nature of the platform and high production value. Still, document ads can also be quite effective, especially for lead generation campaigns that want to promote lengthy reports or other content.
Video Ad Production Tips
Many B2B marketers produce video content in other channels (such as Meta) and reuse it for LinkedIn. If this is the case, it is essential to remember that Meta’s video ad spec is substantially different (4 GB file size) and that aspect ratio recommendations also differ from those specified by LinkedIn.
While it may seem like a good idea to rely on the same source file, remember that aspect ratios within different channels differ significantly. If you want to repurpose this content for a LinkedIn video ad, always make sure to resize the source file to fit the aspect ratio (based on placements) and reduce the file size to no more than 200 MB (if using 16:9).
Pre-Upload Checklist
- Make sure the file is in MP4 format.
- Check the file size.
- Verify that the frame rate does not exceed 30 fps.
- Use the recommended aspect ratios of 16:9, 1:1, 4:5, or 9:16.
- Add captions, either burned in the video or as a separate upload.
- Preview your video with the sound off to make sure that the first three seconds serve as a hook.
- Make sure that all text or logo elements are not placed near the borders of the frame and get cut off when moving to different aspect ratios.
Frequently Asked Questions
What is the maximum file size for a LinkedIn video ad?
The largest file size for a LinkedIn video ad is 200 MB, and it is substantially smaller than the 5 GB limit for organic (native) video posts. This means that any native video that one wants to repurpose as an advertisement will require additional compression.
What is the best length for a LinkedIn video ad?
The best length for a LinkedIn video ad is between 15 and 30 seconds, although the platform allows video ads as short as 3 seconds and as long as thirty minutes.
Does LinkedIn allow vertical video ads?
Yes, LinkedIn allows vertical video ads in both 4:5 and 9:16 ratios. The full 9:16 ratio (1080px x 1920px) is only available in the vertical LinkedIn video feed and is only viewable on mobile devices.
I’m considering adding captions to my video ad – are they worth it?
Yes, because a considerable percentage of LinkedIn users watch videos with the sound off, and captions dramatically increase engagement. It is best to use captions that are burned in since the caption option only gives viewers the ability to toggle captions on/off.
Can the same video be used for organic posts and video ads?
Yes, but it is important to remember that organic native posts have different specifications. Specifically, they have a higher file size limit (5 GB) and longer duration (up to 30 minutes). In other words, the video ad would have to be compressed to fit the requirements for the video length and file size.
What is the recommended frame rate for a LinkedIn video ad?
It is best to export video at a frame rate of 30 fps. A higher frame rate will lead to additional compression, which will compromise the video quality.
Is it worth producing a 9:16 vertical video ad?
It depends on the target audience and how many of them watch LinkedIn videos on mobile devices since 9:16 only appears within the vertical video feed. In other words, if there is a substantial mobile traffic portion, it is best to produce separate video content in this aspect ratio since it provides a much better viewing experience on phones. However, it is not recommended to rely on this ratio exclusively since it is only suitable for mobile viewing.
Why was my LinkedIn video ad compressed?
A video ad gets compressed if it does not meet the technical specifications. The most common reason for unexpected compression is using a source file that is too large (over 200 Mb). Another common cause is having a frame rate higher than 30 fps. The video can also get compressed if it does not use the MP4 container.
Do LinkedIn video ads autoplay?
Yes, all LinkedIn video ads autoplay, and this is why it is so important to make sure that the first three seconds serve as a hook and encourage viewers to engage with the video.
Tools
It is not necessary to have professional production equipment to create a LinkedIn video ad since several essential tools can help anyone meet the required specifications without extra costs. First, all standard tools (such as CapCut or Adobe Premiere Rush) allow users to create a video in different aspect ratios without additional editing.
Second, any competent video editing software (such as HandBrake) can reduce the file size to below 200 Mb without compromising the quality. Another tool that can be useful for video ad creation is Canva Video since it allows users to add captions, animated elements, and text overlays to the source footage. The same functionality can be achieved using Kapwing, which provides automated captioning.
Budget Allocation Between Different Aspect Ratios
The recommended practice is to create a single video ad and export it in two or three different aspect ratios, rather than producing multiple variations of the source video. The reason for this approach is that most modern video editing tools allow users to modify one source file.
The most time-consuming part of multi-ratio export is the graphic design part since the same visual elements (logos, text, and graphics) may need to be re-sized to fit the aspect ratio requirements. It becomes much easier if the initial concept already takes into consideration the tightest ratio (9:16) and all other elements are adjusted accordingly, even if the intended aspect ratio is 16:9.
Measurement and Analysis
Once the video ad has been published and met all technical specifications, the analysis can begin. The metrics that matter most are those related to video views – views, view-through rate (VTR), and average watch time. In particular, the average watch time and VTR provide vital insights into the ad’s performance.
A high VTR and a low CTR suggest that the video underperforms on the CTA, while a low VTR combined with a high CTR indicates that the issue is in the hook. In both cases, the numbers need to be compared to the 15-30 second average view time before final conclusions can be drawn.
Overall, the LinkedIn video ad specs are not that difficult to understand and follow. The most important factors to consider are the video’s format (MP4), file size (under 200 Mb), length (3 sec – 30 min, with 15-30 sec being optimal), frame rate (no more than 30 fps), and aspect ratio (16:9, 1:1, 4:5, and 9:16).
The most common mistakes that prevent video ads from being approved or underperforming are using the wrong video format or aspect ratios, having a file size that is too large, and exceeding the thirty-fps threshold.
