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Compress PDF Online

Compress PDF online to reduce file size for email and the web while keeping good quality.

Category Fast + simple

1) Upload

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Secure workflow

2) Run

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Open guide: Compress PDF files for email and web without ruining qualityCompress PDF files for email and web without ruining quality
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Compress PDF files for email and web without ruining quality
Reduce PDF size for email, uploads, and faster sharing. Learn compression levels (screen/ebook/printer/prepress) with PDFMaple.
Read guide: Compress PDF files for email and web without ruining quality

Compress PDF online to save space

Compress PDF online when your file is too large for email, takes too long to upload, or uses too much storage. Compression typically works by optimizing images and streamlining the PDF structure.

How to compress a PDF

  1. Upload your PDF.
  2. Choose a compression level (higher compression = smaller file).
  3. Download the optimized PDF.

When compression helps most

  • Scanned PDFs with large images.
  • PDFs exported from design tools with unoptimized assets.
  • Documents you need to send via email or upload to a web form.

Quality tips

  • If text looks blurry after compression, try a lighter compression level.
  • Compress after you finish editing to avoid repeated re-processing.
  • For faster merging, compress first, then use Merge PDF Online.

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