PDFKitly

Browser PDF utility

Compress PDF

Reduce PDF size while preserving readable quality.

Processed locally. Your document stays on this device.

Drop PDFs here

Files stay on this device. They are not uploaded.

Optimize PDF structure in your browser

Browser compression rewrites the internal PDF structure and removes avoidable overhead. Results depend on the document: image-heavy scans may require a dedicated server compression provider for substantial savings.

How to use Compress PDF

  1. 1. Choose your PDF file.
  2. 2. Configure the pages or output.
  3. 3. Process and download locally.
  • — Balanced is a sensible default
  • — Compare the downloaded file visually
  • — Compression is not guaranteed to be lossless

Frequently asked

Are files uploaded?

No. This tool runs in your browser.

Why might a PDF fail?

Damaged files, encryption, unusual features, or browser memory limits can prevent processing.