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Compress PDF to 500KB Online
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Compress PDF to 500KB or less for college admissions and official documents. No loss in readability, 100% private.

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Max 20MB • Text stays clear & readable
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How to Compress a PDF Online in 3 Easy Steps

Government portals like UPSC, SSC, IBPS, and state PSC recruitment boards routinely reject document uploads that exceed their file size limits — typically 100KB, 200KB, or 500KB. Marksheets, degree certificates, caste certificates, and identity proofs are the most common files that need to be compressed before upload. This tool compresses any PDF to your chosen target size, entirely inside your browser with no file upload to any server.

The compression technique used here renders each page of the PDF as a high-quality JPEG image and then assembles a new, smaller PDF from those images. This is very effective for scanned documents (marksheets, certificates, ID proofs), which make up the bulk of government exam uploads. The text remains clearly legible even after compression.

For SSC CGL, CHSL, MTS document uploads, the typical size limit is 100KB per document. For UPSC Civil Services, most certificates need to be under 200KB or 300KB. For IBPS/SBI bank exams, documents are usually accepted up to 500KB. For Aadhaar address update document proof, the limit is typically 2MB.

If your compressed PDF is still slightly above the target size, try with a more aggressive target (e.g. set 80KB instead of 100KB) to ensure it fits within the portal's limit. You can also try scanning the original document at a lower DPI (150 DPI is usually sufficient for readable text).

This tool works seamlessly on Android and iPhone browsers — no app required. Since all processing is done in the browser, there is no server cost, no sign-up, and no limit on how many files you compress. The tool is free forever.

Frequently Asked Questions

How do I compress a PDF to 200KB for UPSC?
Select the "200 KB" preset, upload your certificate or marksheet PDF, and the tool will automatically compress it. UPSC requires most documents under 200KB or 300KB in JPG/PDF format. This tool is optimized precisely for that range.
What PDF size is needed for SSC document upload?
SSC (Staff Selection Commission) typically requires uploaded PDFs to be under 100KB. Select the 100KB preset on this tool to compress your document. Marksheets, ID proofs, and caste certificates are the most common files applicants need to compress for SSC.
Is my PDF document safe? Is it uploaded to a server?
No. Your PDF never leaves your device. The tool uses PDF.js (Mozilla) and jsPDF inside your browser. All rendering and recompression happens locally. This is especially important for sensitive documents like degree certificates, ID proofs, and caste certificates.
Will the text in my PDF still be readable after compression?
Yes. The tool renders each page at a high enough resolution that all text remains clearly legible. For most scanned documents compressed to 200KB, the quality is more than sufficient for official document submission. If you have very fine print, use a higher target (e.g. 300KB).
Can I compress a PDF with multiple pages?
Yes. This tool supports multi-page PDFs. Each page is individually optimized and then combined into a single compressed PDF. The progress bar shows processing page by page.
What is the maximum PDF size I can upload?
The tool can handle PDFs up to approximately 20MB. Very large PDFs may take longer to process but will work. For faster results, avoid uploading PDFs with very high original DPI scans (600+ DPI is unnecessary for govt uploads).
What PDF size is required for bank job (IBPS/SBI) uploads?
IBPS and SBI typically accept certificates and marksheets up to 500KB. Use the 500KB preset for a comfortable size that maintains good quality while staying well within the limit.
Does the tool work with scanned PDFs?
Yes. Scanned PDFs (like photographs of documents) are the most common use case. The tool renders each scan as an optimized image and repackages it as a PDF. Text-based PDFs (like resumes) also work but may see minimal size reduction since they are already efficient.
Can I use this on my mobile phone?
Yes. This tool works on Android Chrome and iOS Safari. You can share a PDF from your file manager or WhatsApp directly to your mobile browser, open this tool, and compress it. No app installation is needed.
What if the compressed PDF is still larger than the target?
If the output is still slightly above target, try setting a lower target size (e.g. if 200KB doesn't work, try 150KB). Very large PDFs with many pages may not compress below certain thresholds. In that case, try splitting the PDF into individual pages before compressing each one.
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