PDF Compressor
Upload a PDF — we rebuild it in your browser (lossless structure optimization).
Guide and details
About this tool
Online forms often cap PDFs at 200 KB, 300 KB, or 1 MB. This tool rewrites the PDF structure in your browser to shave bytes where possible. Image-heavy scans may still need you to lower scan resolution or split files—combine with our JPG tools for best results.
Why use it
- Quick try for portals that reject “file too large.”
- Runs locally—good for sensitive documents.
- Pairs well with JPG-to-PDF when building uploads from scans.
How to use
- Select your PDF file.
- Wait for processing to finish.
- Compare old vs new size and download if smaller.
Related free tools
Complete your form workflow with these complementary utilities—everything stays free on Sarkari AI Result.
Privacy: Form-filling tools on this site process your files in the browser when described as client-side. Nothing is sent to Sarkari AI Result servers for those operations.
Frequently asked questions
Why did the size barely change?
pdf-lib mainly optimizes structure; PDFs that are mostly embedded images may need re-scanning at lower DPI or converting pages to compressed JPG first.
Is my PDF sent to a server?
No—processing is in-browser.