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Compress PDF Online Free
Reduce PDF size for email and sharing. Everything runs locally in your browser — your files are not uploaded.
Drag & drop a PDF
1 PDF file
Pages: —
Compression level
About this Compress PDF tool
Compressing PDFs in the browser isn’t always “magic”. Many PDFs are already optimized, and some contain mostly text. This tool focuses on a realistic approach: reducing size by re-rendering pages to compressed images.
That usually helps when a PDF contains large embedded images (scans, photos). Note: image-based compression can reduce file size but may remove selectable/searchable text.
Use High quality for better readability, Balanced for general use, or Small file for the smallest output.
FAQ
Do you upload my PDF?
No. Processing runs in your browser whenever possible.
Why can text become non-selectable?
This compression is image-based: it rebuilds a new PDF from rendered page images.
Will this always reduce size?
Not always. If your PDF is already optimized or mostly text, size savings may be small.
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