Email attachment limits
Gmail caps attachments at 25 MB per email. Outlook is 20 MB by default. A medium pass usually clears either limit on a typical 50 MB scanned document.
Compress PDF
Reduce PDF file size while maintaining quality. Perfect for email attachments, web uploads, and storage optimization.
Maximum 20 files, 100MB each
Select PDF files to compress
Upload PDFs
Secure
Drop your PDFs here
Drag files here or pick from your device
How it works
How it works
Pick a compression level. The size-versus-quality tradeoff is up to you.
1
Drop your PDFs
Add up to 20 files at once. Each can be up to 100 MB. The total file size is shown in the toolbar so you can see what you started with.
2
Choose how hard to compress
Light compression keeps images sharp for printing. Recommended is the usual pick for email and uploads. Strong compression produces the smallest file for portals with tight limits; scans and photos come out softer.
3
Compress and download
Click Compress. Each file comes back individually so you can keep what you want and discard the rest if a level was too aggressive.
Use cases
What people use it for
Web upload caps
Job application portals, government forms, and university submission pages often cap PDFs at 5-10 MB. High compression usually gets you under.
Archiving and storage
Long-term storage is cheaper if your scans aren't 200 MB each. Medium is the safer pick when you might need to read text later.
Sharing on slow connections
Smaller PDFs open and download faster on field hardware, hotel Wi-Fi, and metered mobile data.
FAQ
Frequently asked questions
Text usually does, because most PDF text is vector and isn't re-encoded. What gets compressed is embedded images. Scanned pages, which are images, can soften visibly at the Strong setting.