Compress Exam Documents Under KB Limit (Aadhaar, PAN, Marksheets)
Compress Aadhaar, PAN, marksheets and certificates to the exact KB range exam portals ask for (20–300KB). Free browser-based PDF compressor with a readability check.
Government exam portals limit uploaded documents by size — Aadhaar and PAN are often capped at 200KB, marksheets at 300KB, and a minimum size (e.g. 20KB) is also enforced. Files that are too large or too small are rejected.
This compressor shrinks your scanned documents to sit inside the required KB window for the document type, while keeping the text legible. Everything runs in your browser, so confidential certificates never leave your device.
Compress certificates to the exact KB range
Identity proof — keep it legible, Aadhaar watermark visible.
Scanned documents are rasterised and re-encoded to land safely under the portal's KB limit. If the source is already under the limit it is passed through unchanged. Always keep a copy of the original file.
Upload a PDF to preview the compressed result.
Exam PDF Compressor runs entirely in your browser — no document ever leaves your device. Multi-page and batch files are supported; batch downloads come as a ZIP.
Common exam document size limits
- Aadhaar Card: 20–200KB PDF.
- PAN Card: 20–200KB PDF.
- Bank passbook first page: 20–200KB PDF.
- Marksheets / certificates: 30–300KB PDF.
- Caste / domicile / PwD certificates: 20–200KB PDF.
- Photo ID & signature scans: 10–100KB JPEG.
How to compress a PDF under the exam KB limit
- 1
Choose the document type
Select Aadhaar, PAN, marksheet, etc. — the KB range is set automatically, or choose custom.
- 2
Upload the PDF
Drag your scanned document into the tool.
- 3
Process
The compressor re-rasterizes the pages and tunes quality until the file sits inside the range.
- 4
Preview and download
Check the readability score and page preview, then download the compressed PDF.
Pro tips
- Scan at 150–200 DPI to balance readability and file size.
- For multi-page certificates, upload each page separately if the portal asks per-page.
- Preview the compressed PDF zoomed-in to check that dates and numbers remain legible.
Frequently asked questions
What size does the Aadhaar upload need to be for exam forms?
Most portals accept the Aadhaar card PDF between 20KB and 200KB. This tool targets that exact window for Aadhaar documents.
Will compression make my document blurry?
The tool re-rasterizes at a controlled resolution and picks the highest quality that still meets the KB limit, so small text on certificates usually stays readable. Always preview before uploading.
Why does the portal also reject files that are too small?
Many portals enforce a minimum size (e.g. 20KB) to prevent blank or corrupt files. This tool keeps the output above the minimum for your document type.
Is my certificate uploaded anywhere?
No — compression runs entirely in your browser using PDF.js and canvas, so your certificates never leave your computer.