PDF Compress — free online tool

Email gateways often cap attachment size; re-saving a PDF in-browser can trim bytes when the source is not already heavily compressed.

When to use PDF Compress

Shrink oversized scanned PDFs so they clear email and portal size caps.

Keeps drafts on your machine instead of sending contracts to unknown servers.

What PDF Compress does not do

Best-effort rewrite; already-optimized PDFs may barely shrink. Not Ghostscript quality presets.

How to use PDF Compress

Select a PDF on PDF Compress.
Pick compression level if offered (higher compression may reduce quality).
Process and compare old versus new file size in the message area.
Download when the size drop is worth any quality loss for email attachments.

Practical tips

Compression helps most when a PDF holds large images; text-only files barely shrink.
Check the result opens cleanly—aggressive compression can soften scanned text.
If email still rejects the size, split the PDF and send it in parts.

Example

Shrink a 25 MB scanned contract so it clears a 10 MB portal upload cap.

Related tools on Webtoolshop

PDF Merge — Combine first, then compress the packet.
PDF to JPG — If you only need images, rasterize instead of compressing text PDFs.

Limitations

Rewrites the PDF; scanned image-heavy files shrink more than text PDFs. Results vary.

Privacy & data

No. The file is read in your browser tab and the result is generated locally. Nothing is sent to Webtoolshop servers for in-browser image or PDF tools.

Frequently asked questions about PDF Compress

What does the PDF Compress not do?

Best-effort rewrite; already-optimized PDFs may barely shrink. Not Ghostscript quality presets.

Give me a concrete example for the PDF Compress.

Shrink a 25 MB scanned contract so it clears a 10 MB portal upload cap.

Why did the PDF Compress fail or look wrong?

Try a smaller file, fewer pasted characters, or an updated browser. Extensions that block scripts or downloads sometimes interfere—test in a private window if results never appear.

Are my files uploaded when I use the PDF Compress?

No. The file is read in your browser tab and the result is generated locally. Nothing is sent to Webtoolshop servers for in-browser image or PDF tools.