There are a few important guidelines to keep in mind when posting from Taplio to LinkedIn, especially when it comes to uploading files like images, videos, or PDFs.
One of the most common causes of publishing errors is the file name format. LinkedIn has strict requirements, and if they’re not followed, the post may fail to publish.
📁 Supported file types:
Images:
GIF, JPEG, PNG
Max size: 5 MB per file
Max resolution: 6000 × 6000 px
✅ Unlimited number of images per post
Documents:
PDF
Max size: 50 MB per file
Videos:
MP4, MOV, AVI, WEBM, MKV, WMV, VC1, MPEG, DVVIDEO, QTRLE, TSCC2
Max size: 128 MB per file
⚠️ Current posting limitations:
Multiple videos are not supported
Video + image is not supported
Video and PDF file(s) together are not supported
Multiple PDF files are not supported
PDF file(s) and images together are not supported
Posting videos from company pages is not supported
✍️ Character limits:
Scheduled comments: 1250 characters
Posts: 3000 characters
✅ Allowed in file names:
Letters (a–z, A–Z)
Numbers (0–9)
Dashes (-)
❌ Not supported:
Spaces
Underscores (_)
Symbols (@ # $ % etc.)
Emojis
Accents (é, ñ, ü, etc.)
Parentheses or brackets
Extra periods (only keep the one before the extension)
✔️ Examples of valid file names:
linkedin-post-image-01.png
product-demo-video-2025.mp4
marketing-report-q1-2025.pdf
❌ Examples that will cause issues:
LinkedIn Image.png
sales-report(Q1).pdf
launch🔥video.mp4
Best practices:
Use lowercase letters only
Separate words with dashes (not spaces or underscores)
Keep the name short and clear
Always include the correct file extension
💡 Safe format to follow:
content-type-topic-version.extension
Example: linkedin-image-growth-tips-1.png
🚨 Quick checklist before uploading:
Only letters, numbers, and dashes?
No spaces, symbols, or emojis?
Correct file type and size?
Clear and readable name?
Following these guidelines will help ensure your posts go through smoothly every time 🚀