Converter

Compress PDF — Reduce File Size, In Your Browser

Re-save a PDF to strip metadata and remove duplicate objects. Often reduces size by 10-30%. Runs entirely in your browser — no uploads.

Upload a PDF

Frequently Asked Questions

Does this upload my file anywhere?

No. Everything runs in your browser using pdf-lib. Your PDF never leaves your device.

How much will it reduce the file?

Typically 10-30% for typical PDFs. Image-heavy PDFs may reduce more. Some PDFs (already highly compressed) may not reduce at all.

Will the quality change?

No visual quality loss. The tool only re-encodes the PDF structure, not the content.

Why isn't it reducing more?

Real PDF compression requires re-encoding images (JPEG quality reduction), which is hard client-side. For maximum compression, use a server-side tool like Smallpdf or iLovePDF.

Related Tools

PDF Tools

Merge and split PDF files entirely in your browser. No uploads.

Image Resizer

Resize images by pixels or percentage. Nothing leaves your browser.

PDF Rotate

Rotate all PDF pages by 90, 180, or 270 degrees. In your browser.