Take full control of your PDF properties. Easily change the title, author, subject, keywords, and hidden custom fields securely in your browser.
Click to select a file or drag and drop
A single PDF file
Your files never leave your device.
Note: Custom fields are not supported by all PDF readers.
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Upload the PDF you want to modify. The file loads instantly since it never leaves your device.
Change or erase the Title, Author, Keywords, Dates, and any hidden custom metadata properties.
Click the 'Save Metadata' button to permanently apply your changes and download the updated PDF file.
Inspect the hidden properties of your PDF.
Strip hidden data from your PDF.
Annotate, highlight, redact, comment, add shapes/images, search, and view PDFs.
Remove metadata, annotations, scripts, and more.
Reduce the file size of your PDF documents while maintaining the best possible quality.
PDF metadata is hidden information embedded within your file, which typically includes details like the document Title, Author, Subject, Keywords, Creator tool, and Creation Date.
Editing metadata helps you organize your documents better, improves searchability (SEO for PDFs online), and allows you to remove sensitive or outdated information, such as the original author's name.
Yes. Simply delete the text from all the metadata fields provided and leave them blank. When you click Save, all those properties will be stripped from the document.
No. ZentoPDF prioritizes your privacy. All metadata editing operations happen locally within your web browser using WebAssembly. Your files are never uploaded or stored on any server.
Some PDF creation software adds extra non-standard metadata fields. The Custom Fields section allows you to discover, view, edit, or completely remove these hidden properties.