How to Compress PDF Without Losing Quality
Reduce PDF file size for exam uploads while keeping documents readable. Complete guide with free tools.
Compress PDF Instantly
No upload needed. 100% private. Works in browser.
PDF Size Requirements by Exam
| Exam | Max Size | Recommended |
|---|---|---|
| SSC CGL/CHSL | 200KB | 150-180KB |
| IBPS PO/Clerk | 200KB | 150-180KB |
| UPSC CSE | 300KB | 200-280KB |
| RRB NTPC | 200KB | 150-180KB |
Step-by-Step: Compress PDF Online (Free)
Open the PDF Compressor
Go to ReadyToSubmit's free PDF compressor tool
Upload Your PDF
Click 'Choose File' or drag and drop your PDF
Choose Compression Level
Select 'Medium' for best quality-size balance
Download Compressed PDF
Click download to save your optimized file
💡 Tips to Maintain Quality
- ✓Start with a high-quality original scan (300 DPI recommended)
- ✓Use "Medium" compression for best balance
- ✓Avoid re-compressing already compressed PDFs
- ✓Remove unnecessary images or pages before compressing
- ✓Use black & white mode for text documents
PDF Compression Methods Compared
Online Tool (Recommended)
Use ReadyToSubmit's PDF compressor for instant results
Adobe Acrobat
Professional tool with advanced options
Preview (Mac)
Built-in Mac tool for basic compression
Ready to Compress Your PDF?
Our tool processes files locally on your device. No data is uploaded. 100% private.
compressCompress PDF NowRelated Articles
Frequently Asked Questions
How do I compress a PDF below 200KB without losing quality?
Use medium compression settings and start with a high-quality scan at 300 DPI. Avoid re-compressing already compressed PDFs. Our PDF compressor lets you target a specific KB limit — set it to 150–180KB to stay safely under the 200KB exam limit.
What is the PDF size limit for SSC, IBPS, and UPSC?
SSC: 200KB. IBPS PO/Clerk: 200KB. UPSC CSE: 300KB. RRB NTPC: 200KB. Always check the specific exam notification as limits can change each year.
Does compressing a PDF make the text unreadable?
Not if done correctly. Medium compression reduces images in the PDF but keeps text sharp. If your PDF is mostly text (like a marksheet or certificate scan), you can compress more aggressively without quality loss. Avoid 'maximum' compression for scanned documents.
Why is my PDF still large after compressing?
Large PDFs usually contain high-resolution embedded images. If the original scan was at 600 DPI, the file will stay large unless image resolution is also reduced. Try compressing with image downsampling to 150 DPI for exam PDFs.
Can I compress a PDF on mobile without an app?
Yes. Our PDF compressor works entirely in your browser — no app needed, no file upload to any server. Open it on mobile, select your PDF, compress, and download.