Drop a file here, or click to choose a file
Supports PDF, JPG, PNG, WebP, DOCX, XLSX and PPTX
The current version supports PDF, JPG, PNG, WebP, DOCX, XLSX and PPTX.
What Is Hidden Information in Documents?
When you create PDFs or take photos, your files often contain hidden information. This includes author names, GPS locations, device details, editing history, annotations, attachments and other metadata.
What Privacy Data Can PDFs Contain?
PDF files can embed document properties, XMP metadata, annotations, embedded file attachments, form field values, external links, JavaScript actions, and content hidden outside the visible page area.
What Privacy Information Do PDFs Store?
Beyond the visible content, PDF files can store the author name, the software used to create the file, creation and modification timestamps, XMP metadata, form field values, embedded file attachments, annotations with reviewer names and comments, external hyperlinks, JavaScript actions, and even content placed outside the visible page area.
Why Do Images Contain GPS Locations?
Most smartphones and digital cameras automatically record GPS coordinates in image EXIF data.
How Can Annotations, Attachments and Forms Leak Information?
PDF annotations may contain reviewer names, comments, and timestamps. Attachments can include entire files. Form fields may hold personal data.
What Is the Difference Between Removing Metadata and Deleting Content?
Removing metadata deletes hidden information without affecting visible content. Deleting content means permanently removing text or images. This tool focuses on metadata.
Why Doesn't a Black Rectangle Equal Permanent Redaction?
Placing a black shape over text does not remove the underlying text. Use the PDF Redaction tool for permanent text removal.
How to Check Privacy Before Sharing a File
Upload your file and click Start Privacy Check. Review the report, select items to clean, and download the cleaned file.
Local Processing vs. Server Upload
This tool processes everything in your browser. Your files are never sent to any server.
Supported File Formats
The current version supports PDF, JPG, PNG and WebP files. Office document formats are not yet supported.
Known Limitations
- This tool cannot guarantee detection of all sensitive information.
- PDF hidden content detection is limited to what the PDF library can inspect.
- Office documents are not yet supported.
- Sensitive text detection uses pattern matching and may produce false positives.
- Image re-encoding may change file size or quality.
- Digital signatures cannot be removed.
Data & Privacy
All file processing happens in your browser. Files are never uploaded, stored, or logged.
Frequently Asked Questions
Are my files uploaded to a server?
No. All processing happens locally in your browser.
What file formats are supported?
PDF, JPG, PNG and WebP. Office documents are not yet supported.
What hidden information can PDFs contain?
Author names, dates, XMP metadata, annotations, attachments, form values, links, JavaScript actions, and hidden content.
Why do images contain GPS locations?
Most smartphones record GPS coordinates in EXIF data when taking photos.
Does cleanup modify the original file?
No. A new cleaned file is generated.
Does metadata cleanup affect image quality?
Lossless removal does not change pixels. Re-encoding may cause minor quality changes.
Does cleaning a PDF invalidate digital signatures?
Yes, modifying a signed PDF may invalidate signatures.
Can this tool find all sensitive information?
No tool can guarantee finding every piece of sensitive data.
Does a black rectangle over text permanently remove it?
No. Use the PDF Redaction tool for permanent removal.
Why do some items require manual review?
Some issues cannot be automatically verified and require human inspection.
Can encrypted PDFs be checked?
If you know the password. The tool cannot bypass unknown passwords.
Can metadata be recovered from a cleaned file?
Generally no. Deleted information cannot be recovered from the cleaned file.