Compress PDF
Shrink a heavy file down for email, or hit an exact size limit.
Drop your PDF here
Or click to browse. Your file is read on this device only.
Processed entirely in this browser tab. Nothing is uploaded anywhere.
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About Compress PDF
Compress PDF shrinks file size so documents fit email limits and upload portals. Most PDF weight comes from images, so avalpdf re-encodes pictures at a lower resolution and quality while keeping pages readable.
When people use it
- Getting a scanned application under a portal's 200 KB or 1 MB limit.
- Making a photo-heavy brochure small enough to email.
- Saving space when archiving years of scanned paperwork.
Tips for better results
- Text-only PDFs are already small; compression helps most on scans and photos.
- Try the lighter setting first and only go stronger if the file is still too big.
- For an exact limit, the size-specific pages such as Compress PDF to 100 KB aim for that target.
How to use Compress PDF
- 1Open the Compress PDF page on avalpdf.
- 2Drop your file in, or click to browse for it.
- 3Choose your options — the defaults suit most files.
- 4Run the tool and download the finished file.
Read the full guide: How to reduce a PDF file size (under 1 MB, 200 KB or 100 KB)
Questions about Compress PDF
- Is Compress PDF free to use?
- Yes. Every avalpdf tool, including Compress PDF, is free with no sign-up and no daily limit.
- Are my files uploaded to a server?
- No. The work happens inside your browser tab, so the file itself never leaves your device.
- Does Compress PDF work on a phone?
- Yes — it works in mobile browsers on Android and iPhone as well as on desktop.