Compress PDF online — shrink file size privately
Make a PDF small enough to email or upload without sending it to a third-party server. PDFediters rebuilds the file at a lower resolution right inside your browser, so your document stays on your device.
Open the Compress PDF tool →How to compress pdf (free, no upload)
- 1Open the Compress toolOpen the PDFediters Compress tool — no account or installation needed.
- 2Add your PDFDrag in the PDF you want to shrink. The file is processed locally and never uploaded.
- 3Choose a compression levelPick light, balanced or strong compression depending on how small you need the file and how much quality you can spare.
- 4Export the smaller PDFClick Export to download the compressed PDF, rebuilt on your device.
Private by design
Most online PDF tools upload your file to their servers to process it. PDFediters does not. Your pdfhappens entirely inside your browser, so the document never leaves your device and there is no copy on anyone else's server. No account, no watermark, no limits. Read how it works →
Compress PDF — questions answered
Are my PDF files uploaded to a server?
No. PDFediters runs entirely in your browser using JavaScript. Your files are read, merged, compressed and signed locally on your device and are never uploaded to or stored on any server.
Is it safe to merge or sign PDFs online?
With PDFediters it is, because nothing is uploaded. Many online PDF tools send your file to their servers to process it; PDFediters does all processing in your browser, so your document never leaves your device and there is no copy on anyone else's server.
Which PDF editor does not upload my files?
PDFediters is a free PDF editor that processes files 100% client-side in your browser. You can merge, compress and sign PDFs without your files ever being uploaded to a server.
Is PDFediters free to use?
Yes. PDFediters is 100% free and unlimited. There is no sign-up, no account, no watermark and no daily limit.
How do I compress a PDF?
Open the Compress tool, add your PDF, choose a quality level (light, balanced or strong), and export. PDFediters rebuilds the file at a lower resolution to shrink its size — ideal for scans and image-heavy documents.
Can I sign a PDF online for free?
Yes. Open the Sign tool, draw or type your signature, then place it exactly where it belongs on the page and export the signed PDF. Everything happens in your browser.