Compress PDF for Trello
Trello limits attachments to 10 MB on the free plan. Compress your PDFs to add them to your Trello cards and boards without issues.
Quick Summary
“Free Trello limits attachments to 10 MB. FreeConversion compresses your PDFs directly in the browser to meet this limit.”
Drop your PDF here
or click to select a file
Latest update : February 13, 2026
How does it work?
Go to FreeConversion.
Select your PDF.
Compress to get under 10 MB.
Add the file to your Trello card.
How does PDF compression work?
PDF compression for Trello uses WebAssembly technology to process your files directly in the browser. Unlike cloud services, no file is sent to a server. The algorithm reduces embedded image weight, removes unnecessary metadata, and optimizes the internal PDF structure. The result: a lighter file, perfect for Trello, while preserving text readability and visual quality of graphic elements.
Compression Quality Levels
Light
20-40% reduction. Ideal for documents with few images. Quality nearly identical to original.
Medium
40-60% reduction. Good balance between size and quality. Recommended for most uses.
Maximum
60-90% reduction. Perfect for email or messaging attachments. Images are more compressed.
Privacy & Security
When you compress a PDF for Trello with FreeConversion, your files never leave your device. Processing happens entirely in your browser using WebAssembly — no data is sent to a remote server. This is the ideal solution for sensitive documents: contracts, resumes, invoices, bank statements. Unlike other online tools, we never store, read, or analyze your files.
Trello file size limit: 10 Mo (gratuit) / 250 Mo (Premium)
Trello has a 10 Mo (gratuit) / 250 Mo (Premium) file size limit. If your PDF exceeds this, FreeConversion can reduce it in seconds without noticeable quality loss. Our tool automatically adjusts the compression level to reach the target size while preserving document readability.
Tips to optimize your PDFs for Trello
- ✓Medium mode is enough for most documents.
- ✓Trello Premium allows up to 250 MB per file.
- ✓Compress before uploading to save time.
Why compress your PDFs?
Respects Trello's 10 Mo (gratuit) / 250 Mo (Premium) limit
100% local compression — your files stay private
No registration or installation required
Faster sending on Trello
Frequently Asked Questions
Will the compressed PDF be compatible everywhere?
Yes, compressed PDFs remain in standard PDF format and open in all PDF readers (Adobe Reader, browsers, mobile apps, etc.).
Is this PDF compressor free?
Yes, our PDF compressor is completely free. No hidden fees, no registration required, and no file size limits.
Can I compress scanned PDFs?
Yes! Scanned PDFs are often very large and benefit greatly from compression. You can typically reduce their size by 50-80%.
Can I compress multiple PDFs at once?
Currently, you can compress one file at a time. However, the process is very fast and you can compress as many files as you want consecutively.