Compress PDF to 30KB
30KB is the sweet spot where a single clean scanned page fits at genuinely readable quality — which is why certificate-upload fields on many portals cap there. We compress toward your target at the best quality that fits, never make the file larger than the original, and always show the real final size — very image-heavy files may land slightly above tight targets.
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Drag & drop your file here
or click to browse · Up to 15 MB
Select fileAccepted: PDF
Your files are processed temporarily and deleted automatically — there is no general cloud storage. File deletion.
How to compress pdf
Simple steps — no software to install.
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Upload the certificate PDF
One page; split larger files first.
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Target 30KB
Readable-quality compression toward the cap.
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Check and submit
True final size shown before upload.
Why use our Compress PDF
Secure & private
Files are encrypted in transit and deleted automatically after processing.
Fast results
Optimized processing returns your file in seconds.
Free to start
Core tools are free with daily limits — no install required.
Works anywhere
Runs in your browser on any device, anywhere in the world.
The single-scan budget
At 30KB, one scanned certificate or letter compresses to readable-with-detail: text crisp enough to verify, seals and signatures identifiable. It is the first target size where scan quality stops being the main worry — for one page.
Where 30KB caps appear
Scholarship portals, e-district certificate uploads, university application attachments — anywhere the system wants verifiable single-page documents without storage bloat.
- Certificate-upload ready
- Readable single-scan quality
- True final size shown
- Never larger than input
- Free with fair daily limits