Shrink PDFs without leaving your browser.

How it works

1. Drop a PDF

   Or a link to one. Several at once is fine.

2. Compressed on your device

   Images are resampled, text and vectors stay untouched.

3. Download

   One file, or all of them as a zip.

Typical result12.4 MB → 3.1 MB−75%

What it does

• Stays on your device

  Ghostscript, compiled to WebAssembly, runs in your browser. PDFs you drop in are never uploaded, so a contract or a passport scan stays with you.

• Images shrink, text does not

  Scans and photos are resampled to a resolution that still reads well. Text, vector drawings and form fields are written out unchanged.

• A batch at a time

  Drop ten files, watch each one shrink, and take them one by one or all together as a zip. Switch the quality and the whole list is redone.

Smaller

Images 72 dpi, for email

Balanced

Images 150 dpi, text untouched

Sharper

Images 300 dpi, for print

When a smaller PDF is the only way through

• Documents for a bank

  Banking portals cap each upload. Scanned IDs, statements and contracts rarely fit until they are compressed.

• Email attachments

  Most mail servers stop at around 25 MB per message. A smaller PDF goes through instead of bouncing back.

• Visa and government forms

  Application portals set strict limits per file and reject anything above them, often without saying why.

• Scans from a phone

  Every scanned page is a full-size photo. Ten pages of a contract turn into tens of megabytes.

• Proof of address

  A utility bill saved from a provider’s site or photographed on a phone is often too heavy for the service that asks for it.

• Job and tender applications

  A CV with a portfolio, or a bid with its annexes, has to get under the form’s limit and still look right.

Compress to a limit:100 KB200 KB300 KB500 KB1 MB2 MBAll sizes

Chrome extension

Questions

Are my files uploaded anywhere?

Not the files you drop in or choose: they are compressed in your browser. Only a PDF you add by link is fetched through our server, and ShrinkPDF asks before it does that.

Why does the first file take longer?

The compression engine, about 10 MB, is downloaded when you open ShrinkPDF. Once it is there, each file starts straight away.

What if a file does not get smaller?

Some PDFs are already compact. If the result is not smaller than the original, ShrinkPDF discards it and marks the file as already small.

Can I change the quality afterwards?

Yes. Pick another level and every file in the list is compressed again from its original.

Does a signed PDF stay signed?

No. Compression writes a new file, and a digital signature only vouches for the exact bytes it was made over. Keep the signed original.

Is there a file size limit?

No fixed limit. The file is processed in your browser, so very large PDFs are bounded by the memory your device has to spare.