Add PDF Properties
Drop a PDF file here or click to upload
No size limit — large files welcome
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What is Add PDF Properties?
Add PDF Properties sets title, author, subject, and keyword metadata on a PDF document. The tool loads the PDF, applies the metadata fields you specify, and returns the updated file. Any fields you leave blank are not modified — only the fields you fill in are changed.
The implementation uses pdf-lib to read the existing document, call the setter methods for each metadata field, and save the result. The visual content, fonts, and structure of the PDF are completely preserved.
How to Use Add PDF Properties
- Upload a PDF by dropping it onto the upload zone.
- Fill in any combination of Title, Author, Subject, and Keywords fields. Leave blank to keep existing values.
- Click Add Properties. The tool sets the metadata and returns the updated PDF.
- Download the result as
properties-added.pdf. Open it in a PDF viewer to verify the properties panel shows your changes.
Why Use Add PDF Properties?
PDF metadata is what search engines, document management systems, and operating system file explorers use to identify and organize your files. Adding proper title and author metadata makes documents searchable by name and creator. Keywords help document management systems categorize and retrieve files. For professional submissions, many organizations require specific metadata fields to be filled in before accepting PDF deliverables.
Privacy & Security
Your files never leave your browser. Every step — reading, setting metadata, and writing the PDF — happens on your own device using pdf-lib compiled to WebAssembly. Nothing is uploaded to Racira's servers, no copies are stored in the cloud, and no file data is transmitted at any point.
Frequently Asked Questions
Does this overwrite existing metadata?
Only the fields you fill in are changed. If you leave Title blank but set Author, only the author is updated. Existing values in other fields remain untouched. To clear a field, you would need a separate tool that explicitly removes metadata.