Edit a PDF without uploading it — keep contracts and ID scans on your own computer
2026-10-06
Dropping a signed contract or a passport scan into a free PDF site means leaving a copy on a server you do not control. A deletion policy is a promise you cannot verify. If the job can be done without uploading at all, that is the safer route.
Upload-based versus in-browser
An upload-based tool sends your file to a server, processes it there and returns the result. For that window the file exists on their system. An in-browser tool does the opposite: the processing code is downloaded to your browser and works on the file where it is. The file never leaves your computer.
There is a simple way to tell the two apart. Disconnect from the network and try again — if the tool still works, nothing is being uploaded. This site keeps working offline once the page has loaded.
Extra steps for sensitive documents
- Clear author and company names from document properties with the metadata tool
- Send only the pages that are needed; the whole file is rarely required
- Delete the copy in your downloads folder once it has been sent