PDF Compressor
Reduce PDF file size directly in your browser
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About PDF Compressor
PDF Compressor reduces the file size of PDF documents by re-encoding images and removing redundant data. This is useful for emailing documents, uploading to portals with size limits, or archiving files more efficiently.
All compression happens in your browser. Your files are never sent to a server. You can choose between light, medium, or aggressive compression depending on how much quality you are willing to trade for smaller file size.
Note that browser-based compression works best on PDFs that contain large embedded images. Text-heavy PDFs are already quite compact and may not shrink as much. For heavily optimised files, a desktop tool may achieve better results.
PDF Compressor Knowledge Base
What It Is Used For
Reduce PDF file size directly in your browser. People usually use this tool when they need fast, repeatable output without opening a heavy desktop app or sharing private data with a third-party service.
How To Use It
Paste your input, adjust the visible options, run the action, then copy or download the result. For keyboard-heavy workflows, supported tools also respond to Ctrl+Enter or Cmd+Enter.
Search Topics Covered
compress pdf, reduce pdf size, pdf optimizer. This page is written to answer those common search intents with practical browser-based examples and privacy-first processing.
Frequently Asked Questions
It depends on the content. Image-heavy PDFs can shrink by 50-80%. Text-only PDFs may barely change.