Real-world use case
Useful for meeting upload limits on portals, email attachments, or CMS file-size restrictions.
Compress PDF Online
Compress PDF files to reduce size. Choose Low, Medium, or High compression. Max 10MB, no sign-up required. Requires Adobe PDF Services.
Input file
Converted result
Daily limits: 7 for guests, 15 for signed-in users.
You have 7 of 7 remaining today.
- No registration required
- Files deleted immediately after processing
- Max 10MB per file
- Free to use
Your files are automatically deleted immediately after processing. No manual cleanup is required.
How to Compress a PDF
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Upload your PDF file (max 10MB).
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Choose compression level: Low, Medium, or High.
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ConvertFloor processes the file and reduces its size.
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Download the compressed PDF. Your file is not stored.
About Compress PDF
Pick Low, Medium, or High—Adobe’s engine rewrites the PDF so attachments stop tripping 8–10MB walls. Text usually survives fine; photos and scanned pages take the hit first. One file, 10MB max in, smaller PDF out. Nothing is kept after you download. I’d default to Medium unless I’m emailing a deck full of screenshots—then I might brave High and eyeball the result.
If the output is not what you expected, try a cleaner source file, then run the conversion again.
Practical tips
- Compress once, then validate signature/readability.
- If needed, split large PDFs before compression.
Manual vs tool
Manual print-to-PDF often causes unpredictable quality loss; this gives a direct compression flow.
Limitations
Compression is a quality-size tradeoff and cannot preserve perfect fidelity in all files.
Edge cases
- Already optimized PDFs may not shrink much.
- Aggressive compression can reduce scan readability.
Try another tool
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