Compress PDF. For free.
Shrink a heavy PDF so it's easy to email and upload: scans and image-heavy files shrink the most. No watermark, no signup, and if it's already optimized we hand back your original, never a bigger file.
Smart
Keeps the smaller of the two
Private
Encrypted upload, our own engine
Temporary
Deleted after 1 hour
How it works
- 01
Add your PDF
Drop in a PDF, or click to browse. It's uploaded privately over TLS.
- 02
We compress it
Ghostscript downsamples images and subsets fonts for a big size cut at good quality.
- 03
Download the smaller file
See exactly how much you saved, then grab the lighter PDF. Everything is deleted after 1 hour.
More PDF tools: Merge · Split · Rotate · Page numbers · Watermark · Organize · Crop · Sign · Redact · Add text · N-up · Protect · Unlock · Repair · PDF/A · OCR · To images · Extract images.
Common questions
How small will it get?+
It depends on the PDF: scans and image-heavy documents usually shrink the most, and text-only files the least. If a PDF is already optimized, we tell you and hand back the original untouched, so you never end up with a bigger file.
Is my file private?+
Yes. It's uploaded over an encrypted connection to our private storage (Supabase, named in our privacy policy), compressed on our own server, never by an outside conversion service, and the upload and result are deleted after 1 hour.
Will it ruin the quality?+
We use a balanced "ebook" setting (~150 DPI) that keeps text crisp and images clear on screen and for everyday printing.
Is there a limit?+
No watermark and no signup. Free covers 10 server conversions a day, up to 100 MB a file. Pro removes the daily limit and raises the file limit to 2 GB.
Why isn't this in my browser like your other PDF tools?+
Real compression re-encodes images and fonts, which needs a proper engine (Ghostscript). Merge, split and rotate stay in your browser; compression runs on our private server and is deleted after 1 hour.