PDF Compressor
Scanned documents, image-heavy reports, and design PDFs can balloon to 50MB or more — too large for email, upload portals, and cloud storage limits. FluidConvert compresses your PDFs by up to 75% while keeping text crisp and images clear. Free, instant, no signup.
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PDF files only · Max 100MB free
Fast & Free
Process files up to 100MB at no cost. No account needed.
Secure
Files are encrypted and automatically deleted after processing.
High Quality
Optimized algorithms for the best quality-to-size ratio.
About PDF Compressor
Why compress PDFs?
PDF files grow large fast — a 20-page report with charts might be 15MB, a scanned contract can hit 30MB, and design portfolios regularly exceed 100MB. Email services reject attachments over 25MB, many government submission portals cap at 10MB, and large PDFs are slow to open on mobile devices. Students, lawyers, real estate agents, accountants, and anyone who shares documents regularly hits these limits.
How PDF compression works
PDF compression reduces file size by re-compressing embedded images (the biggest size contributor), removing duplicate resources, optimizing font embedding, and stripping unnecessary metadata. Text and vector elements remain sharp since they're resolution-independent. The primary trade-off is image quality within the PDF — at standard compression, images look nearly identical to the originals. Aggressive compression reduces images further for maximum size savings.
How FluidConvert handles it
Upload your PDF and our servers intelligently compress images, optimize resources, and strip bloat while preserving text sharpness and document structure. Hyperlinks, bookmarks, and form fields remain functional. Files are encrypted and auto-deleted after download. Free for PDFs up to 100MB.
Common uses for PDF Compressor
- Compressing scanned contracts to fit within email attachment limits
- Reducing presentation PDFs for upload to government or university portals with size caps
- Shrinking large design portfolio PDFs for easier sharing with potential clients
- Compressing image-heavy reports for faster loading on mobile devices
- Reducing PDF size for cloud storage optimization on Google Drive or Dropbox
Frequently Asked Questions
Will text remain sharp and readable after compression?
Yes. PDF compression primarily targets embedded images, which are the main source of file size. Text, vector graphics, and line art remain perfectly sharp since they're stored as scalable data, not pixels. Only embedded photographs and image scans are re-compressed.
Can I compress a scanned PDF?
Yes, and scanned PDFs benefit the most from compression since they're essentially full-page images. A 30MB scanned document can often be reduced to 5-10MB while remaining perfectly readable. The scanned text quality depends on compression level — standard settings keep it clear.
Will form fields and hyperlinks still work?
Yes. Compression targets the visual/image layer of the PDF. Interactive elements like form fields, hyperlinks, bookmarks, and the table of contents remain fully functional in the compressed output.
How is this different from 'Print to PDF'?
Printing to PDF re-renders the document and often changes formatting or removes interactive elements. Proper PDF compression optimizes the existing file structure without altering layout, fonts, or functionality. The compressed PDF looks and works identically to the original — just smaller.