SizePDFSizePDF

Compress PDF offline

After SizePDF loads, compression runs on your device. Ideal when you do not want documents sent to a server.

  • 100% local
  • No upload
  • Free to use
Target size
Quality

Compression starts when you select a file · max 20.0 MB, 50 pages · files stay on your device

Simple flow

How it works

Secure, local compression for scanned documents — no account, no upload.

1

Open SizePDF

Load the page once so the local compressor is available.

2

Compress on your device

Select a PDF. Processing does not require uploading files.

3

Save the result

Download the smaller PDF for later upload or email.

100% local processing · Files never leave your device

Questions

FAQ

Privacy, quality, and what to expect from local compression.

Is SizePDF fully offline?

The page and libraries load from the network first. File compression itself runs locally and does not upload your PDF.

Are my documents private?

Yes. Files stay on your device during compression.

Can I compress without an account?

Yes. No signup required.

What files work best offline?

Scanned certificates, photo documents, and other image-based PDFs.