How to use it
- Choose the PDF. Its page count appears under the name, and its current title, author, dates and other properties fill the boxes.
- Change the boxes you want: type a new title, author or keywords, or clear a box to remove that property. Change a date with its date and time box.
- Leave Set the modified date to now ticked to record today's date as the last change, or untick it to keep the date you typed or the original one.
- Click Save the changes, then Download. To delete every property instead, tick Remove all metadata and save.
What a PDF stores about itself
Every PDF has a document information dictionary: its title, author, subject, keywords, the program that created the document (creator), the program that wrote the PDF (producer), and when it was created and last changed. Viewers, search engines and file managers read these values.
Many files also carry an XMP block, a second copy written in XML. This tool reads it and shows a note, but it does not rewrite it when you change a box. Only Remove all metadata deletes it.
Removing metadata before you share
Removing all metadata deletes the document information dictionary, the XMP block and the page-level XMP blocks. Old copies of earlier saves are removed too, so the values do not stay hidden in the file.
It does not change the pages. Metadata inside pictures (for example the camera's location in a photo) and inside form fields or comments is not touched; those need a separate check.
- The document identifier that lets a reader tell two files apart is kept, because removing it would change how the file is read.
- A saved file has a new modified date unless you turn that option off and clear the box.
Example: a contract sent without the author's name
A draft contract shows the author Ayşe Demir and the creator Word in its properties. You clear the author box and the creator box, and keep the title and the dates. Save and download the new file.
The file still opens and reads the same, its title is kept, and the author and creator are gone from the properties a viewer shows.
Frequently asked questions
Are my PDF files uploaded anywhere?
No. Your browser reads the file, changes the properties and makes the new copy on your own device. Nothing is sent to our server.
Why do the dates change when I save?
The modified date is set to the time you save, to show the file changed, unless you untick the option or type a date yourself. The created date stays as it is unless you change it.
Why does a property still show a value after I cleared it?
Some PDFs keep the same values in the XMP block, and some readers show that block first. Tick Remove all metadata to delete the block and every other property.
Does removing metadata remove the hidden information in the pages?
No. It removes the properties of the file, not the text, pictures or form data inside it. Check pictures for location data with a picture tool, and use a redaction tool for text you need removed.
Can I change the producer or the creator?
Yes, both are ordinary boxes. Note that some readers write these values again when they open and save the file.
Does it work on a phone?
Yes, in any up-to-date browser. Tap a box to type, and use the date and time boxes that your phone shows.
Sources
- pdf-lib, the open-source library that reads and writes the document information in your browser
- pdf-lib documentation: reading and changing existing PDFs, their page boxes, document information and form fields
Figures and text last checked on Tuesday, November 10, 2026.