LinkedIn video ads specs and guidelines define the technical boundaries for any professional video campaign. According to official LinkedIn documentation, the platform supports file sizes up to 200MB and video durations ranging from a minimum of 3 seconds to a maximum of 30 minutes. Adhering to these specific parameters ensures that your creative assets upload correctly and display as intended within the feed of your target audience. Professional marketers must align their production schedules with these technical requirements to avoid rejections or quality loss during the upload process in the Campaign Manager.
What are the core file requirements for LinkedIn video ads?
When preparing your creative files, you must ensure that your video meets the specific technical thresholds set by LinkedIn. The platform primarily supports MP4 files, which are the standard for web playback. Keeping your file size under 200MB is mandatory for all uploads. If your file exceeds this limit, you must compress the video or reduce the resolution to fit within the constraint. In a typical account setup, using a 1080p resolution often provides a balance between high visual quality and a file size that stays comfortably within the 200MB limit, even for longer duration videos.
Beyond the file size, consider the aspect ratio of your video. While LinkedIn supports landscape, square, and vertical orientations, landscape at 16:9 is the most common format for desktop viewing. For mobile audiences, square (1:1) or vertical (9:16) often perform well because they occupy more screen space in the LinkedIn mobile feed. You should avoid placing critical visual information too close to the edges of the frame to account for the different UI overlays, such as the play button or the volume toggle, which may obscure parts of your video.
How do you manage video duration and performance?
The allowed duration for LinkedIn video ads spans from 3 seconds up to 30 minutes. While the platform permits long-form content, the actual viewing habits of professionals suggest that shorter videos often see higher completion rates. If you are aiming for brand awareness, keeping your message concise is a standard practice. Most successful campaigns in a typical account use videos between 15 and 60 seconds to convey value quickly before the user scrolls past the ad unit.
For longer videos, such as webinars or case study walkthroughs, ensure that the most relevant information appears in the first few seconds. Because users often browse with autoplay video enabled, the first 3 seconds must capture attention without relying on sound. Many users watch videos on mute during their commute or work hours, so adding captions is a practical step. You can use the SRT file upload feature within Campaign Manager to add subtitles to your video ads, which helps maintain engagement even when the sound is off.
Technical checklist for your video assets
- File format: MP4 is the supported file type for all video ads.
- File size: Maximum limit is 200MB for any single video upload.
- Duration: Minimum 3 seconds and maximum 30 minutes.
- Frame rate: Keep between 30 frames per second or lower for compatibility.
- Resolution: Aim for 360p to 1080p to ensure clarity on various devices.
- Audio: Use AAC or MPEG4 audio formats with a bit rate of 64kbps or higher.
Why should you use the SRT format for captions?
Using the SRT (SubRip Subtitle) format is the correct way to add closed captions to your LinkedIn video ads. When you upload an SRT file, it is linked to your video asset within the Campaign Manager. This method is superior to hard-coding captions into the video file itself because it allows users to toggle them on or off. Furthermore, it ensures that your text remains sharp and readable, regardless of the compression LinkedIn applies to the video file to facilitate fast loading in the feed.
When creating your SRT file, ensure that the timecodes are accurate and synchronized with the audio. A common error is a slight offset in timing, which can confuse the viewer. Check your SRT file in a text editor to verify the format before uploading. By providing captions, you make your content accessible to a wider audience, including those who may be in environments where sound is not permitted. This simple technical addition frequently increases the total time spent watching your ad.
How Alien Road applies these technical specs
At Alien Road, our team uses these technical specs as the foundation for every campaign setup. Before we even begin the creative production phase, we provide a technical brief to our clients. This brief outlines the exact resolution, bitrate, and frame rate requirements to ensure that the files we receive are ready for direct upload to LinkedIn. By standardizing these settings early, we minimize the time spent in the Campaign Manager during the actual launch phase and prevent common errors like file rejection.
We also conduct a pre-flight check on all video assets. This involves testing the videos against the 200MB threshold and verifying that the aspect ratios align with the specific campaign goals, whether that is driving clicks or generating leads. For example, in a typical engagement for a B2B SaaS client, we produce multiple versions of a single video to test different orientations. We then monitor how these variations perform against the target audience, adjusting our strategy based on the specific metrics provided by the platform analytics tools.
What are the common pitfalls during the upload process?
One common issue is attempting to upload a file that uses an unsupported codec. While MP4 is the target, the internal encoding matters. If your video uses an unusual codec, the LinkedIn system might fail to process it. Always use standard H.264 compression for your video files. Another issue involves the file size limit being slightly exceeded by metadata or high audio bitrates. If you encounter an upload error, check the file properties to ensure the total size is strictly under 200MB.
You should also watch out for the thumbnail image requirements. LinkedIn allows you to upload a custom thumbnail for your video. If you do not provide one, the system will select an automatic frame from the video, which might not be the most professional choice. A high-quality, relevant image that includes a clear visual hook can significantly improve the click-through rate. Ensure your thumbnail does not contain excessive text, as this can negatively impact ad delivery performance.
Best practices for professional video ad production
- Include a clear call-to-action button within the ad unit settings.
- Keep branding consistent with your landing page experience.
- Test different video lengths to find the optimal point for your audience.
- Ensure audio levels are balanced to avoid distortion on mobile speakers.
- Verify that your text overlays do not cover the LinkedIn ad UI elements.
- Monitor the ad delivery status in Campaign Manager after the initial upload.
Where to start this week
To start this week, audit your current video assets against the LinkedIn specs provided. Identify any videos that are larger than 200MB or that do not have associated SRT files for captions. If you are creating new content, set your project export settings to match the 1080p, H.264, and MP4 requirements. By refining your technical workflow now, you will save time when building your next campaign in the platform.
Begin by reviewing the Campaign Manager dashboard to see which of your existing videos are underperforming. Use the performance data to determine if you need to shorten your videos or add more compelling visual hooks in the opening seconds. Once you have your new assets ready, perform a test upload in a draft campaign to ensure everything renders correctly. This proactive approach ensures your brand maintains a professional appearance in the LinkedIn feed every time your ad serves to a prospect.
Keep reading: Linkedin Ads · B2B Marketing