PDF Tools4 options compared

Compress PDF

Reduces PDF file size through image recompression and structural optimisation. Users upload a PDF, select optimization options like image quality and compression level, then download the smaller version for email sharing or saving space. Helps users manage large files by significantly reducing their size without compromising essential content and formatting. Ideal for frequent document senders,...

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Editors’ Top PickBased on community votes
Other OptionsRanked by votes
  3. Screenshot of PlumeDocs
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    PlumeDocs
    plumedocs.com

    Shrink PDF file size in your browser by re-compressing only the images inside, so text stays selectable and the layou...

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Side by side

Compress PDF options compared

ToolBest forStrengthsLimitations
MyDocFlow
mydocflow.app
Quick compression with quality balance
  • Free online tool
  • Three compression levels (Smallest, Recommended, High quality)
  • No mention of file deletion policy
  • Maximum 50 MB file size limit
PDF Candy
pdfcandy.com
Privacy-focused compression
  • Files auto-erased within two hours
  • Preserves text readability and image quality
  • Works on any OS
  • Requires sign-in (Google/Apple/Email) to compress
  • No free tier mentioned without account
PDF24
pdf24.org
Highly rated free option
  • 4.92 out of 5 stars from 14,974 users
  • 100% free with no hidden costs or subscriptions
  • Files deleted after one hour
  • Ad-supported page
  • Relies on advertising to cover expenses
PlumeDocs
plumedocs.com
Browser-based privacy
  • Processes entirely in browser, no uploads ever
  • Text stays selectable after compression
  • No sign-up or registration needed
  • Only compresses images within PDF, not structural optimization
  • May not reduce size as much as image-heavy PDFs

Buyer's guide

How to choose a compress pdf

When picking a PDF compressor, first consider your priority: if you need the smallest possible file size for email sharing, choose the highest compression level available; if you are sharing sensitive documents, look for tools that delete files automatically after processing. Second, check the file size limit and whether the tool requires an account—some free compressors cap uploads at 50 MB or require sign-in. Finally, decide if you prefer a browser-based tool that keeps your files local versus an online service that processes your PDF on a server.

Questions

Compress PDF FAQ

Can I compress a PDF without losing any quality?
1-3 sentence answer grounded in the material
Are these PDF compressors safe for sensitive documents?
1-3 sentence answer grounded in the material
What is the typical file size limit for free PDF compression?
1-3 sentence answer grounded in the material
Do I need to create an account to compress a PDF?
1-3 sentence answer grounded in the material
Which tool gives the best compression for image-heavy PDFs?
1-3 sentence answer grounded in the material
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