picture_as_pdfPDF Guide
How to Compress PDF Without Losing Quality
Reduce PDF file size for exam uploads while keeping documents readable. Complete guide with free tools.
Updated: February 2026•3 min read
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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)
1
Open the PDF Compressor
Go to ReadyToSubmit's free PDF compressor tool
2
Upload Your PDF
Click 'Choose File' or drag and drop your PDF
3
Choose Compression Level
Select 'Medium' for best quality-size balance
4
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
cloud
Online Tool (Recommended)
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No installation needed100% private - files stay on your deviceInstant compression
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Adobe Acrobat
Professional tool with advanced options
High control over qualityBatch processingOCR support
laptop_mac
Preview (Mac)
Built-in Mac tool for basic compression
Free with macOSNo download neededEasy to use
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