A PDF file size reducer should be fast, private, and produce clean output without watermarks. Here is the best free option that keeps your file on your device.
Go to pdfeditor.onl/compress-pdf in any browser. No account, no installation — the compressor is available immediately.
Basic — minimal size reduction, maximum quality (ideal for archiving). Good — balanced reduction with minimal visible quality loss (ideal for sharing). Strong — maximum size reduction, some image quality loss (ideal for strict size limits).
Tip: For most everyday sharing needs, Good compression is the right choice — it typically reduces file size by 40–60% with negligible quality loss.
The result panel shows the original size, new size, and percentage reduction. Download only if satisfied — you can re-upload and try a different level if needed.
Depends on content. Image-heavy PDFs can be reduced by 70–90%. Text-only PDFs may only reduce by 10–30% as text is already efficiently stored.
Yes — completely free at pdfeditor.onl/compress-pdf with no account.