Compress PDF to 300 KB
Make a PDF smaller than 300 KB for an upload form. 300 KB is the top of the 50–300 KB range JEE Main and NEET set for Class 10 certificates, and a common cap for multi-page scans.
- Under 300 KB
- Nothing uploaded
Your files stay on this device. Nothing is uploaded.
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How to compress a PDF to 300 KB
- 01
Choose the PDF
Pick it from your phone or computer; its current size shows next to the name.
- 02
Keep 300 KB selected
The limit is already set for this page. Change it if your form allows more.
- 03
Compress and check
Each page is redrawn until the whole file fits. Open the download and check every page.
What fits in 300 KB
- Three to six pages of text fit in 300 KB at a readable resolution.
- Pages are saved as images to reach the limit, so text in the new PDF can't be selected. Keep the original.
- A digital signature is lost when a PDF is rewritten. Ask the issuer for a smaller signed copy instead.
Questions people ask
Is my file uploaded?
No. The PDF is made in your browser on your own device and never sent anywhere.
Will the text still be readable?
Yes, if the limit suits the number of pages. Pages are drawn at up to 150 dpi and only lowered as far as the limit needs. Open the download and check every page before you upload it.
How do I compress a PDF to 300 KB on my phone?
Open this page in your phone's browser, choose the PDF and tap Compress to under 300 KB. It works without an app or sign-up, and the smaller file downloads to your phone.
My PDF won't go under 300 KB. What can I do?
Remove pages the form doesn't need, or scan again in black and white: grey, shadowed scans are the hardest to shrink. The tool tells you when a page can't fit while staying readable.
Is 300 KB counted as 300000 or 307200 bytes?
Forms rarely say. The tool stays under 300000 bytes, which passes either way.
How do I compress a certificate PDF to 300 KB for JEE Main or NEET?
Choose the PDF and keep 300 KB selected. Both exams take the Class 10 certificate as a PDF of 50–300 KB, so check the downloaded size is also above 50 KB.
How many pages fit in a 300 KB PDF?
Three to six pages of printed text usually stay readable at 300 KB. Pages with colour photos take more of the limit each.