jarvisbox

Compress PDF

Reduce PDF file size by removing metadata and optimizing structure. Lossless, browser-based, no upload.

100% client-side · no upload
This tool removes metadata and optimizes PDF structure (lossless). Best results on text-heavy PDFs. Image-heavy PDFs will see modest reduction.

How to use

  1. Drop your PDF into the upload area.
  2. Click <strong>Compress PDF</strong> — the tool removes metadata and optimizes structure.
  3. Check the size savings shown in the stats.
  4. Download the compressed PDF.

Related PDF tools

Common uses

常见问题

Does this upload my PDF?
No. All processing happens locally in your browser using pdf-lib. Nothing is sent to any server.
Does this work on mobile?
Yes. Works in Safari on iPhone/iPad and Chrome on Android. Tap the upload area to select a PDF.
Is there a file size limit?
No imposed limit. The practical limit is your device memory. Most modern devices handle hundreds of megabytes.
Are password-protected PDFs supported?
No. Remove the password from the PDF first using your PDF reader, then use this tool.
What PDF versions are supported?
Standard PDF 1.x and 2.0 files. Encrypted PDFs are not supported.
Is the output quality the same as the input?
Yes. The tool does not re-encode page content. Text remains selectable and images retain full resolution.
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