PDF tools

Compress PDF Files≈

Optimize PDF content streams with lossless compression. File size savings depend on the original document.

Tools will load when you run.

How to use Compress PDF Files

  1. Choose your PDF.
  2. Choose the PDF you want to optimize.
  3. Run compression and compare the downloaded file size with the original.

Process multiple files

Use a workflow to apply the same settings to each file.

Formats and requirements

Input formats
PDF
Output
PDF
Availability
Free in your browser and through the CLI
Files per operation
1
Browser file limit
128 MiB per file, 128 MiB total

What to expect

Light preserves image quality. Balanced and Maximum may reduce image quality and resolution. The original is kept if no smaller output is found.

Do my files leave my device?

No. Thanks to advanced file-processing technology, your files are processed directly on your device, inside your browser. OneKit does not receive your input files or results. Required public processing libraries may download when you first use the tool.

File privacy and local processing →

Install OneKit

Keep OneKit in its own app window, with a shortcut on your device.