BestWordz

PDF Compressor

Compress PDF files to reduce file size for email, web, and storage. Upload one or more PDFs and download compressed versions. All processing happens locally using pdf-lib — no files are uploaded to any server.

Privacy: this tool processes your data entirely in your browser. Nothing you paste or type is sent to the server.

Select one or more PDF files to compress.

Higher compression may reduce image quality within the PDF.

Result

Enter your values and press Calculate — the result appears here.

Worked examples

Compress a PDF for email

  • level = medium

Result: Upload a PDF file and select medium compression. Typical reduction: 20–50% depending on PDF content.

Frequently asked questions

Is my PDF uploaded to a server?

No. Compression happens entirely in your browser using pdf-lib. Your files never leave your device.

Will compression reduce PDF quality?

Low compression preserves quality. Medium and high compression may reduce embedded image quality slightly.

What PDF features are preserved?

Text, images, fonts, and structure are preserved. Some interactive elements may be affected by high compression.

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