Compress PDF Online
Shrink a PDF to a target file size — 200KB, 500KB, 1MB, or custom. Everything runs in your browser — nothing is uploaded to any server.
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Drop a PDF file here
or click to select files
How to Use
- 1
Upload your PDF
Drag and drop a PDF file into the upload box, or click to browse.
- 2
Choose a target size
Pick a preset — 200KB, 500KB, 1MB — or enter a custom size in KB.
- 3
Compress and download
Click "Compress PDF", see the before/after size, and download the smaller file.
Frequently Asked Questions
How do I reduce a PDF file size to a specific KB?↓
Upload your PDF, choose a target size preset (200KB, 500KB, 1MB) or type a custom size in KB, then click "Compress PDF". The tool re-renders each page as an optimized image and rebuilds the PDF to get as close to your target size as possible.
Will compressing a PDF make the text unselectable?↓
Yes. To reach small target sizes reliably, each page is converted into a compressed image and reassembled into a new PDF. This works best for scanned documents, forms, and photo-heavy PDFs. If you need to keep selectable text, avoid heavy compression or use a different tool.
Why can't the tool always hit my exact target size?↓
Some PDFs (especially those with many high-resolution pages) cannot be shrunk to a very small target without becoming unreadable. In that case, the tool returns the smallest reasonable result it could produce and shows you the achieved size.
Is my PDF uploaded to a server?↓
No. Compression runs entirely inside your browser using pdf.js and pdf-lib. Your file never leaves your device, so there is no privacy risk.
What is a good target size for exam application uploads?↓
Many government exam portals (TNPSC, SSC, UPSC) cap PDF uploads at 200KB–1MB for certificates and documents. Check the specific portal's requirement and pick the closest preset, or enter a custom size.