Compress PDF to 300KB
Reduce a PDF to under 300KB for portals that set a strict document limit. Processing happens locally in your browser, so your certificates, marksheets, and application documents stay on your device. Check the active portal instructions before uploading.
Target size
Under 300KB
Best for
1-5 page PDFs
Output
Standard PDF
Processing
100% in-browser
Drop PDF file here or click to select
Reduce file size while keeping quality
300KB PDF compression specifications
Target file size
Under 300KB
Suitable input
Scanned or digital PDFs
Processing
Browser-based; no server upload
Output
PDF with the original page count
Important check
Confirm the current portal limit before submission
How it works
Upload your PDF
Select the certificate, marksheet, application document, or other PDF that must fit within a 300KB limit.
Choose compression
Use the compression controls to reduce the file while checking that important text and document numbers remain readable.
Verify and download
Confirm the downloaded file is below 300KB and that the active portal accepts PDF uploads before submitting it.
Frequently asked questions
Can every PDF be reduced below 300KB?
Not always. Text PDFs usually compress more easily than large, multi-page scans. If the result is still above 300KB, reduce the source scan resolution or compress the source images before rebuilding the PDF.
Will this page work for any exam or university portal?
It can prepare a PDF under the requested size, but upload limits and document rules vary by portal. Always compare the final file with the current official instructions.
Are my documents uploaded to a server?
No. The compressor runs in your browser and does not require your PDF to be sent to a server.
What if the compressed text becomes hard to read?
Use a less aggressive setting or start from a clearer scan. A smaller file is not useful if names, numbers, seals, or signatures are unreadable.
Why does a portal reject a PDF under 300KB?
Portals can also validate file type, page count, readability, and document content. Open the downloaded PDF, confirm every page is present, and compare the final file with the current official instructions.
Bharat Kumar G.verified
Technical SEO & Document Processing Expert
Bharat is the founder of ReadyToSubmit. With years of experience in technical web development, he builds privacy-first, client-side tools to help Indian government exam aspirants format their applications accurately and securely without server uploads.