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Compress Multiple PDF Files Online

Sending one PDF at a time is slow when a form asks for a whole set. Drop the files together, compress the batch, and download one ZIP with every PDF inside.

or drop files here

  • Up to 20 PDFs in one job, with a per-file size and saving shown
  • One ZIP download that keeps each original filename
  • Light files are compressed in your browser, so they never leave your device

How to compress several PDFs at once

  1. 1Drop up to 20 PDFs into the box, or add them in a few taps.
  2. 2Choose a level: Extreme for the smallest files, Recommended for everyday forms.
  3. 3Compress the batch and download one ZIP with every finished PDF.

Batch compression questions

How many PDFs can I compress at once?

Up to 20 files in one batch, with a total of 100 MB and 50 pages on the Free plan. Pro raises the per-file page ceiling; the 20-file batch limit stays the same so the browser is not asked to hold an unbounded queue.

Do I get one PDF or a ZIP?

A batch returns one ZIP containing every compressed PDF. Each file keeps its own name, with a number added when two files share a name, so nothing is overwritten. One file on its own still downloads as a normal PDF.

Are my files uploaded?

Not when the batch fits the browser path. Compression runs on your device, and the files are not sent to a server. A Pro job can use the secure cloud path for stronger compression, and that path is labelled while it runs.

Why did one file fail while the others worked?

The usual cause is a password-protected PDF or a damaged file. The result screen names the file and the reason, and the successful files stay downloadable. Unlock a protected PDF first, then add it to a new batch.

Can I open the ZIP on a phone?

Yes. iPhone opens it in the Files app and Android in Files by Google or your file manager. Both let you extract the PDFs and share them one by one.