PDF Metadata Viewer & Editor
Inspect everything a PDF says about itself — then edit or wipe it.
Document properties
Edit metadata
Change any field and save a new copy. Clear a field to remove it. Both the document properties and the XMP metadata are updated.
Your PDF is ready
File details
Restrictions set by the author
PDF readers enforce these. MySmartCoPilot only reads them.
Page sizes
Show every page
| Page | Size | Orientation | Paper | Rotation |
|---|
XMP metadata
Show the raw XMP
About the PDF Metadata Viewer & Editor
Every PDF carries information about itself: a title, an author, the app it was made in, the software that produced it, when it was created and last changed — often more than the person sharing it realises. This tool shows all of it, along with the PDF version, page count, every page’s size in millimetres, inches or points, whether the file is encrypted (and which restrictions are set), form fields, signatures, bookmarks, attachments and the raw XMP metadata.
You can then fix the properties — for example give a report a proper title so readers show it instead of final_v3 (2).pdf — or remove all metadata before sharing a file. The file is read and rewritten in your browser; nothing is uploaded.
How to use it
- Choose a PDF or drag it onto the box. Its properties and details appear straight away.
- Check Document properties, File details, Page sizes and XMP metadata. Switch page sizes between mm, inches and points.
- To change the properties, edit the fields under Edit metadata and press Save PDF with these properties.
- To strip everything, press Remove all metadata. Then download the new file.
Examples
Author: Asha Rao · Creator: Microsoft® Word for Microsoft 365 · Producer: Microsoft® Word for Microsoft 365 · Created: 12 Mar 2024, 14:05:09 UTC+05:30
The author is usually filled in automatically from the name on the computer that made the file.
Pages 1–24: A4 portrait — 210 × 297 mm · Page 25: A4 landscape — 297 × 210 mm
Common uses
- Removing your name and software details before sending a CV, a tender or a legal document.
- Giving a PDF a proper title and author before publishing it on a website.
- Checking a PDF’s page size and version before sending it to a printer.
- Seeing why a PDF can’t be printed or copied (its security restrictions).
- Finding out whether a file has been changed since it was first written (incremental updates).
Two places PDFs keep metadata
The document information dictionary holds the classic fields: Title, Author, Subject, Keywords, Creator, Producer and the creation and modification dates. Newer files also carry an XMP packet — XML metadata that can hold the same fields and much more. PDF 2.0 prefers XMP, and readers differ in which one they show when the two disagree.
When you save edited properties here, both are updated together, so every reader shows the same thing. Other XMP data such as a PDF/A identification is kept.
What “Remove all metadata” removes
- the whole document information dictionary (title, author, software, dates and any custom fields)
- every XMP packet — for the document and for individual pages, images and fonts
- application-private data (
PieceInfo) that programs such as Illustrator store, and page modification timestamps - objects left over from earlier edits that the document no longer uses
The pages themselves are not changed. Comments keep their author names and the text of the document is untouched — check the content itself if it contains personal details. A PDF/A (archival) file stops being valid PDF/A, because PDF/A requires XMP metadata.
Reading the dates
PDF dates are stored like D:20240312140509+05'30' — year, month, day, hours, minutes, seconds and the time zone. They are shown exactly as recorded, with their zone (for example UTC+05:30 for India). If a file doesn’t record a zone, that is shown too. When you edit dates, the times you enter are in your own time zone.
Limitations
- Encrypted PDFs can be inspected but not edited. When a PDF opens without a password (it only has restrictions), its properties are read and shown read-only. This tool never removes a file’s protection: to edit an encrypted PDF, first save an unprotected copy with Unlock PDF (restrictions need the owner password).
- Saving rewrites the file, so a digital signature becomes invalid, and “Fast Web View” (linearization) is not kept.
- Metadata inside embedded attachments is not changed.
Privacy
Everything happens in your browser. What you enter or open here is not uploaded or stored by MySmartCoPilot.
Frequently asked questions
Is my PDF uploaded to read the metadata?
No. The file is read by your browser on your device, and edited copies are created there too. Nothing is sent to MySmartCoPilot or anyone else.
I changed the title but my PDF reader still shows the file name. Why?
Adobe Acrobat and Reader show the file name in the title bar unless the PDF asks for its title instead. Tick Show the title in the reader’s title bar before saving — it sets the PDF’s DisplayDocTitle preference. Other readers vary: some always show the title, some always the file name.
Does removing metadata make a PDF anonymous?
It removes the information the PDF stores about itself. It does not change what is on the pages: names in the text, comments, headers or signatures stay. Images can also contain details that are part of the page content.
What is the difference between Creator and Producer?
Creator is the application the document was written in (for example Word or InDesign). Producer is the software that converted it to PDF (for example macOS Quartz PDFContext or Ghostscript). Both are often set automatically.
Why can’t I edit an encrypted PDF?
Editing requires decrypting and rewriting the file, which would remove its protection, so this tool doesn’t edit encrypted PDFs. To edit one, first save an unprotected copy with Unlock PDF (it asks for the password when one is needed; restrictions need the owner password), then edit that copy here.
What does “Saved in place” mean?
Some apps save changes by appending them to the end of the file (an incremental update) instead of rewriting it. The count shows how many times that happened, which tells you the file was changed after it was first created. The earlier versions’ data can still be inside the file — saving it here writes a clean copy without them.