PDF Privacy Cleaner — what it does
Finds the hidden text in a PDF — the white-on-white lines, the microscopic text a printer never shows, and content duplicated offscreen — then exports a clean copy with the metadata stripped. This is the check to run before publishing a document you did not create.
How to use PDF Privacy Cleaner
- Open the PDF.
- Run the scan. It reports offscreen text, unusually small text, duplicated text and any metadata found in the file.
- Read the findings; each entry shows the text and why it was flagged.
- Export the cleaned copy, which is written without the file's metadata.
Worked example: a resume downloaded from a template site
Free resume templates sometimes carry hidden text — a site watermark, an optimisation block, or the previous owner's details in white. Running the cleaner on a downloaded template before sending a resume is a two-second habit that prevents a recruiter seeing text you never wrote.
At a glance
| Looks for | Offscreen text, microscopic text, duplicated text, file metadata |
|---|---|
| Output | A copy with metadata stripped |
| Where it runs | On-device in the browser |
| Why it matters | Hidden text is invisible on screen and in print, so you cannot spot it by looking |
| Limit | It reports what it can measure; it does not attempt to detect steganography or image-embedded payloads |
Frequently asked questions
- What is PDF Privacy Cleaner?
- Find hidden or suspicious text in a PDF — offscreen, microscopic and duplicated text — then export a clean copy with all metadata stripped. Two modes: remove only the suspicious areas, or flatten every page to a plain image so no text can be recovered. 100% on-device.
- Is PDF Privacy Cleaner free to use?
- Yes — PDF Privacy Cleaner is free to use, with no sign-up, no install and no account.
- Does PDF Privacy Cleaner upload or store my data?
- No — PDF Privacy Cleaner runs entirely in your browser, so your text, files and results never leave your device.
- Do I need to install anything to use PDF Privacy Cleaner?
- No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.
- Why would hidden text exist in a normal document?
- Mostly by accident or by template design: content pushed outside the page, invisible layers from an export, OCR artefacts, or comment text that is not shown. Occasionally it is deliberate, which is exactly why it is worth checking before you publish.
- Does stripping metadata affect how the document looks?
- No. Metadata such as author, creator and keywords lives outside the page content, so removing it changes nothing visible while removing the trail that shows which machine produced the file.