Compress Your PDF
📄 Drag & drop a PDF here, or click to browse
Free Online PDF Compressor — Shrink Large PDF Files in Seconds
Large PDF files are a common headache — they're too big to email, too slow to upload, and often get rejected by application forms with strict size limits. Our PDF Compressor reduces file size by re-optimizing every page, so you can share reports, scanned documents, or eBooks quickly without them bouncing back.
How to Compress a PDF Online (Step by Step)
- Click the upload box or drag your PDF file into it.
- Pick a compression level: Low keeps quality closest to original, Medium gives the best balance (recommended for most users), and High shrinks the file the most.
- Click "Compress PDF Now" and wait a few seconds while the tool processes each page.
- Download your compressed PDF and check the new file size shown on screen.
Why Your PDF Is Large — and How Compression Helps
Most oversized PDFs are large because of embedded high-resolution images or scanned pages saved without optimization. This tool renders each page at your chosen resolution and re-encodes the images at a reduced quality setting, which is the same core technique used by most professional PDF compression tools — cutting size while keeping the document fully readable.
Which Compression Level Should You Choose?
- Low: Best for documents where visual fidelity matters most, like design portfolios or printable certificates.
- Medium: The recommended default for everyday use — resumes, invoices, reports, and general sharing.
- High: Best when you need the smallest possible file for strict upload limits (e.g. job portals, email attachments under 5MB).
Roman Urdu Guide — PDF File Size Kam Kaise Karein
Apni PDF file upload karein ya drag-and-drop karein, phir compression level (Low, Medium, ya High) select karein. "Compress PDF Now" par click karein aur kuch second mein aapki file compress ho kar download ke liye ready ho jayegi. Medium level zyadatar logon ke liye best rehta hai — size bhi kam hota hai aur quality bhi acchi rehti hai. Ye tool poori tarah free hai aur file kisi server par upload nahi hoti.
Frequently Asked Questions
Will compression make my PDF blurry?
At Low and Medium settings, quality loss is minimal and usually unnoticeable. High compression trades some sharpness for maximum size reduction.
Is there a file size limit?
The tool works entirely in your browser, so the limit depends on your device's available memory rather than any restriction we impose.
Does this work on mobile?
Yes, the tool is fully responsive and works on mobile browsers, though very large files compress faster on desktop.
Are password-protected PDFs supported?
No, please remove the password first before compressing.
Related Tools You Might Like
Need to combine files after compressing? Try our PDF Merger. Have images you need in PDF form? Use Image to PDF.