Compress PDF to 500KB
Upload your PDF and it compresses toward 500KB automatically — same pages, same layout, just smaller. Everything happens in your browser; your file is never uploaded.
Drag & drop your file here
or click to browse your device
Sizes are estimates from your first page. The result stays a real PDF — same pages, same layout, only smaller.
We adjust quality to land as close as possible. If your target cannot be reached without ruining quality, we will tell you honestly.
Built for strict upload limits
Online forms are merciless: government portals, visa applications, university submissions and job sites commonly cap uploads at 500KB or 1MB per file. A 3MB scan of your diploma simply gets rejected. This page compresses your PDF to 500KB automatically — the size that passes the strictest common upload limits without forcing you to guess settings.
What 500KB means for quality
Reaching 500KB takes stronger compression than 1MB, so expect visibly softer images on photo-heavy pages. Text remains readable because the tool prioritizes quality over resolution — pages keep their original dimensions and layout. For text documents the result is usually indistinguishable; for scanned photos, check the preview before submitting.
When to choose 500KB
Pick this target when a form explicitly demands it ("max 500KB"), when uploading over a slow mobile connection, or when you're batch-submitting many documents and every kilobyte counts. If the portal accepts 1MB, use the 1MB page instead — less compression always means better fidelity.
Getting under the limit reliably
Start by deleting blank or duplicate pages with Split PDF, and convert color scans to grayscale if color doesn't matter — both dramatically cut size before compression even begins. After compressing, verify the file opens correctly and the text is legible; then upload with confidence. As always, processing happens entirely in your browser.
