Compress a PDF to 500KB
500KB is the standard cap on visa portals, university forms and many job boards. Target it directly instead of compressing repeatedly.
Drop files here
or click to browse • PDF files only
Target file size
KB
3 free tasks a day · No signup · Files never leave your device
Step by step
- 1Add the PDF above.
- 2Choose the 500 KB preset.
- 3Press compress — the tool binary-searches quality and keeps the best version that fits.
- 4Download and upload it to your form.
Questions
Will 500KB keep my scan readable?+
Yes for most 1–5 page scans. Grayscale mode keeps printed text crisp even at aggressive targets.
Are my files uploaded anywhere?+
No. Every PDFOnCall tool runs inside your browser, so the file never leaves your device. That is also why it finishes in seconds instead of waiting in an upload queue.