Compress PDF — Reduce PDF File Size Online
PDF too big to email, or over a portal's upload limit? Compress it in seconds — pick Low, Medium, or High compression and see exactly how much space you saved.
How to compress a PDF
- Upload your PDF (drag & drop or browse).
- Choose Compress PDF and pick a level: Low (best quality), Medium (balanced), or High (smallest size).
- Download the compressed file — we show you the original size, new size, and percentage saved.
Why use File Forge?
- No Acrobat Pro needed: compression runs on our free server — nothing to install.
- Verifiably private: your file is deleted right after download. The code is open source, so this is checkable, not just a claim.
- Free with no limits: no daily quota, no watermark, no signup.
How File Forge keeps your Compress PDF files private
When you use the Compress PDF tool, your file is uploaded over an encrypted HTTPS connection and processed on the server, then handed straight back to you. File Forge is built privacy-first, and — because the entire codebase is open source — every claim on this page is something you can verify line by line or run yourself, rather than a marketing promise you have to take on trust.
Your file is deleted the moment you are done
The file you upload is removed from our server as soon as the Compress PDF operation finishes, and the processed result is deleted the instant you download it. As a safety net, a background sweeper runs continuously and purges anything older than one hour, so nothing of yours lingers on disk. We never build a library of your documents, never resell them, and never train anything on them. There is no hidden retention and no analytics tied to your file contents.
Open source you can audit — or self-host
Most “free” online file tools ask you to trust a closed black box. File Forge is different: the complete source code is public on GitHub, so a developer can read exactly how the Compress PDF tool handles uploads, confirm the deletion logic, and even run a private copy on their own machine or server. Verifiable privacy beats a privacy policy you simply have to believe.
No account, no watermark, no upsell
There is no signup, no email wall, and no credit card. File Forge never stamps a watermark on your output and never caps you at “one free file” before demanding payment. The Compress PDF tool is genuinely free to use as often as you need, on any device with a web browser — no software to install and no extensions to add.
Frequently asked questions
How much smaller will my PDF get?
PDFs full of photos or scanned pages often shrink by 50–90% at the High level. Text-only PDFs are already efficient and may shrink only slightly. You'll see the exact before/after numbers on screen.
Will compression make my PDF blurry?
Text always stays sharp — compression mainly resamples images. Use Low if image quality matters most, High if file size matters most.
Can I compress a password-protected PDF?
Yes — first remove the password (you'll need to know it), then compress the unlocked file.
More free tools
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