Choose where the processing happens
Before you use any PDF tool — this one or another — find out whether it uploads your file. Some services process files on their servers and delete them after a period; others, like IQ PDF Manager, process them in your browser. Both approaches can be legitimate; what matters is that you know which one you're using and that it suits the document.
Your employer or organisation may also have rules about which tools can be used for customer or patient data. Those rules come first.
Share the minimum
The most effective privacy step is sending less. If a landlord asks for proof of income, they probably need one statement page, not twelve months of transactions.
- Use Extract PDF Pages to send only the relevant pages.
- Use Delete PDF Pages to drop pages with unrelated personal details.
- Check the first and last pages — covers and summary pages often hold account numbers and addresses.
Deleting pages is not redaction
Removing a page takes that page out of the file. It does not hide information on the pages you keep. And drawing a black rectangle over text in a PDF editor frequently leaves the text underneath, where it can be copied or revealed.
If part of a page must be hidden — an account number on a statement you otherwise need to share — use dedicated redaction software that permanently removes the content, then check the result by trying to select or search for the hidden text. Converting a page to an image (for example with image-based compression) also removes the text layer, but anything still visible in the picture remains readable.
Keep track of copies
- Downloads folder: every tool output lands there by default. Move final files to where they belong and delete intermediate copies, especially on shared computers.
- Shared or public computers: avoid them for sensitive documents. If you must, use a private window and delete downloads before you leave.
- Cloud-synced folders: if your Downloads folder syncs to a cloud service, files you process there will be uploaded by that service — independent of the PDF tool.
- Email and messaging: attachments stay in sent folders and chat histories. Consider whether a secure file-sharing method your recipient supports is more appropriate.
Password-protected PDFs
Protected PDFs are protected for a reason. The tools here don't decrypt files. If you're authorised to use one, open it with the password in the software you normally use and save an unprotected working copy — then consider re-protecting the finished file before sending it on, if your PDF software supports that.
A pre-send checklist
- Does this file contain only the pages the recipient needs?
- Is there anything on those pages that isn't meant for them — other people's details, internal notes?
- Have I checked the result in a PDF reader, not just the thumbnail?
- Is the file name neutral? (
passport-scan-jsmith.pdfin a subject line reveals more thandocuments.pdf.) - Have I cleaned up intermediate copies?