Compress PDF.
Keep Your Text. Keep Quality.
Shrink PDF files by up to 90% — right inside your browser. Choose structural compression to keep text selectable, or rasterize for maximum savings. Nothing ever leaves your device.
Drop your PDF here
Compression level
↓ 1.1 MB saved 87%
0%
Average size reduction
Strong mode on a scanned PDF
0
Files uploaded to any server
Everything runs in your browser
0
Compression modes
Structural (text safe) + Rasterize (max savings)
Why it matters
Why PDF Size Matters
Every megabyte you save means faster transfers, better deliverability, and lower storage costs.
Fits email attachments
Most email providers cap attachments at 10–25 MB. A compressed PDF passes every filter — no 'file too large' bounces, no zip workarounds.
Faster cloud uploads
Uploading to Google Drive, SharePoint, or Dropbox? Smaller PDFs transfer in seconds instead of minutes. Your colleagues will thank you.
Cleaner storage
A folder of scanned contracts can easily reach gigabytes. Compress once and reclaim space on your drive, NAS, or cloud storage plan.
Step by step
From Upload to Download in Seconds
Four steps. No sign-up, no queue, no waiting.
- 01
Upload your PDF
Drag and drop any PDF into the upload zone — or click to browse. Files stay in your browser from the moment you drop them.
Drop your PDF here or click to browse
report-2024.pdf · 8.4 MB - 02
Choose compression level
Less keeps text fully selectable (Mode A). Balanced is ideal for most documents. Strong rasterizes for maximum savings (Mode B).
Compression level
Less (best quality)
Structural — text stays selectable
Balanced
Best for most documents
Strong (smallest)
Rasterize — max savings
- 03
One-click compress
Hit compress and FileCrisp processes the PDF page by page in your browser. Large PDFs stream through without ever blocking the tab.
report-2024.pdf
Compressing… page 4/12
62%
Processing entirely in your browser — never uploaded
- 04
Download your result
Your compressed PDF is ready. Grab it immediately or find it in your Downloads panel — it persists across page refreshes.
Compressed!
report-2024-compressed.pdf
8.4 MB
Before
−87%
Saved
1.1 MB
After
Under the hood
Two Modes — Pick the Right One
FileCrisp automatically picks the best mode based on your compression level, but knowing the difference helps you get the best result every time.
Mode A — Structural
Safe. Universal. Text stays.
Mode B — Rasterize
Maximum compression. Massive savings.
How the level selector maps to modes
Less (best quality)
Mode A — Structural
Stream optimization only. Safest, smallest quality impact.
Balanced
Mode A + light rasterize
Structural first; rasterizes only image-heavy pages.
Strong (smallest)
Mode B — Rasterize
All pages converted to images at optimized DPI.
FAQs
Frequently Asked Questions
Everything you need to know — answered plainly.
Ready to compress your PDF?
Free, private, and instant — no account or installation needed.