Compress PDFs to fit a 300KB upload limit — generous enough for most detailed documents with images, forms, or formatted text. Browser-based via pdf-lib.
300KB is comfortable for forms that ask for documents with embedded images, signatures, and multiple pages. Fewer government portals use this limit than 200KB, but some university applications, professional exam services, and corporate forms require it.
Choose your PDF and click. The tool applies object-stream compression and saves the optimised file. For PDFs that exceed 300KB (rare with reasonable source content), preprocess images at lower resolution.
Use it for portals with a 300KB cap — typically professional exam registrations, MBA programme applications with detailed documentation, or corporate vendor onboarding forms.
At 300KB you can include 2–3 small embedded images plus several pages of text. For best results: compress source photos to JPG quality 80% at 600×800 px, scan documents at 150 DPI grayscale, and skip embedded fonts unless absolutely necessary.
No — object-stream compression is lossless. Text remains crisp and selectable.
Yes — the same tool can target smaller sizes if your source content allows.
Phone scanners default to 1–3 MB per page at full resolution. Compress at scan-time using Settings → Quality → Medium for forms.
Explore more pdf tools on the tool hub — or jump straight to the Merge PDF, Rotate PDF, Unlock PDF.