Fast, simple PDF compressor for everyday files
Shrink large PDFs so they’re easier to email, upload, and share — while keeping them readable and looking sharp. Perfect for presentations, reports, portfolios, or any document that’s a bit too heavy.
PDF Compressor
Upload up to 10 PDF files at a time. Each one is compressed and
downloaded back to you with a _compressed suffix.
How this compressor works
Compress up to 10 PDFs in one go — quick uploads, quick downloads.
This tool lets you compress multiple PDFs in one go, so you don’t have to upload and download the same file over and over again.
Upload PDFs
Pick one or more files from your device (up to 10 at a time).
Smart compression
Each file is processed to reduce size while aiming to keep text clear and graphics sharp.
Individual downloads
Every compressed PDF returns as its own file with a _compressed suffix.
Tip: Image-heavy PDFs usually benefit the most from compression. Keep a copy of your original files if you might need the full-resolution version later.
Practical guide
When compression helps most — and what changes to expect.
When compression helps most
- Scans & photos – scanned documents and camera PDFs are usually the biggest wins.
- Slide decks – presentations exported to PDF often contain large embedded images.
- Portfolios – heavy visuals (posters, lookbooks, brochures) compress well.
- Forms – PDFs that are “just a little too large” to upload become shareable.
Best-results checklist
- Keep your original PDF if you might need a full-resolution version later.
- If the PDF is a scan, consider rescanning at a lower DPI next time (e.g., 150–200 DPI for text).
- If your PDF is mostly text (no big images), compression will likely be minimal.
- For critical print jobs (posters, high-res artwork), avoid aggressive compression.
Sometimes reduced: image resolution, image quality, and file metadata.
If your PDF is already optimized, the size drop may be small — that’s normal.
Tip: If a scanned document looks too blurry after compression, keep the original or scan at a slightly higher quality next time (and compress only sharing copies).
Troubleshooting & FAQ
Answers to the most common compression questions.
My PDF didn’t get much smaller. Is the tool working?
Why does the compressed PDF look slightly softer?
Some pages look different after compression. Why?
The tool says “Failed to compress one of the PDFs.” What can I do?
Can I compress a password-protected PDF?
Why do I get multiple downloads instead of a single ZIP?
What’s the max number of PDFs I can compress?
Quick glossary
A few terms you’ll see around PDFs and compression.
- DPI – scan resolution. Higher DPI = clearer scans but larger file sizes.
- Raster images – photos/scans inside a PDF. These are usually the biggest size contributors.
- Vector content – shapes/text that scale cleanly. Often already efficient and compresses less.
