A Word, Excel, or PowerPoint file holds more than what you see on the page. It also stores who wrote and last saved it, the company name, when it was created and how long it was edited, the folder it was saved in, comments, tracked changes, speaker notes, and a small picture of the first page. Most of this is written automatically. Anyone who receives the file can read it, often without opening it in Office at all.
This page opens your document in your browser and tells you, in plain language, what it reveals and how serious that is. Then it removes what you choose and checks its own work. Nothing is uploaded, and the code behind the tool makes no network requests. It is built for the moment before you send a contract, a CV, a quote, a report, or a slide deck to someone outside your organization.
How to use the Remove Metadata From Word Documents and See What Is Hidden
- Add your fileDrop a .docx, .xlsx, or .pptx file on the box, or choose it from your device. You can add up to 25 files. Each one is read on your device, and nothing leaves it.
- Read the reportThe report groups what it finds into names and accounts, comments and notes, edit history, hidden content, locations on your computer or network, dates, and pictures. Each item says whether it will be removed, and shows examples such as the text of a comment or a deleted sentence.
- Choose what to removeThe recommended switches clear the properties, comments, tracked changes, speaker notes, paths, editing-session codes, and hidden photo data. Deleting hidden text is off by default, because that text is part of the document.
- Clean the filePress the button. The tool changes only the parts that hold the data you chose and copies every other part of the file across byte for byte.
- Check the result and downloadEach result lists what was changed, part by part, and the checks that passed. Download the clean copy, open it in your Office program, and look through it once before you send it. Your original file is never changed.
Where metadata hides in an Office file
Modern Office files are ZIP archives. The Library of Congress describes the Office Open XML family (.docx, .xlsx, and .pptx) as XML parts packed in a ZIP container, and you can see this yourself by renaming a copy of a .docx to .zip and opening it. The text of a Word document sits in one part. The author and dates sit in separate property parts, comments sit in their own part, and the preview image is a separate small picture file.
That layout is why metadata is easy to miss. It is not on the page, and Word, Excel, and PowerPoint do not show most of it unless you look in the right place. It is also why it can be removed cleanly: each kind of data lives in its own part, so it can be cleared without rewriting your content.
- Document properties: author, last saved by, title, subject, keywords, category, and a free-text description, plus company, manager, total editing time, and the program and version that saved the file.
- Custom properties: fields that people or document systems add, such as client codes, project names, or approval status. Some also carry a sensitivity label.
- The thumbnail: a small picture of the first page or slide, stored inside the file.
- Comments and the list of people who made them, including account names and sign-in IDs in newer files.
- Tracked changes in Word, which keep deleted text, inserted text, the reviewer's name, and the time of each change.
- Speaker notes in PowerPoint, and the comments on each slide.
- Paths: the folder the file was last saved in (Excel records this), printer settings that can name an office printer or print server, and the path of the template a Word document is based on.
- Hidden content: hidden text in Word, hidden sheets, rows, and columns in Excel, hidden slides and hidden objects in PowerPoint.
- Pictures with their own metadata, and charts that carry a full copy of their spreadsheet.
What the report tells you, and how risk is rated
Each finding is rated so that you can tell the important items from the routine ones. Comments, tracked changes, speaker notes, hidden sheets or slides, the saved folder path, and photos with a GPS location rate as high. Names, company details, printer settings, and anything that identifies a person rate as medium. Dates, editing time, revision numbers, and the program that saved the file rate as low. The file's overall rating is the highest rating among its findings.
The report shows the actual content of what it finds, not just a count. For comments you see who wrote them and what they say. For tracked changes you see samples of the deleted text and who deleted it. That is usually what convinces people to clean a file, because the deleted sentence is often the one they least want a client to read.
How tracked changes are accepted
Tracked changes are the most valuable thing to remove, and the hardest to remove correctly. If you only switch off the display, the deleted text is still in the file. Cleaning therefore accepts every change, the same way Word does when you choose Accept All Changes: insertions stay as normal text, deletions disappear with their content, moved text ends up at its new place, and formatting changes keep the new formatting.
A few cases need care. When someone deleted a paragraph break, the paragraph merges into the one that follows. A paragraph that was deleted completely is removed, and so is a table row that was deleted. When one person's deletion sits inside another person's insertion, the text is dropped. After cleaning, the tool reads the text of the original with all changes accepted and compares it with the text of the cleaned file. If they differ, the file is not offered.
- Insertions: kept as ordinary text, with the reviewer's name and time removed.
- Deletions: removed together with their text.
- Moves: the text stays at its new position and the old position is removed.
- Formatting changes: the current formatting is kept and the record of the earlier formatting is removed.
- Deleted paragraph breaks and table rows: applied, so nothing stays behind as an empty paragraph or row.
What is reported but never deleted
Some hidden content is part of how a file works. Formulas in Excel can read from a hidden sheet, a hidden row can be part of a layout, a hidden slide can be linked from a button, and a pivot table needs the copy of the data it keeps. Deleting these automatically could change your numbers or your presentation without you noticing, so the tool lists them and leaves them in the file.
For each of these items the report includes steps for removing it yourself in Excel, Word, or PowerPoint. That includes a note on “very hidden” sheets, which do not show in Excel's Unhide list at all and can only be found in the Visual Basic editor. Treat any item marked as reported only as still being in your file.
How to do it yourself in Word, Excel, and PowerPoint
Microsoft's built-in tool for this is the Document Inspector. Open the file, choose File, then Info, then Check for Issues, then Inspect Document. It looks for comments and annotations, document properties and personal information, headers, footers, and watermarks, hidden text, custom XML data, revision tracking data, off-slide content in presentations, and hidden rows, columns, and worksheets in workbooks. You then choose Remove All next to each category you want cleaned.
Microsoft is clear about one point, and it matters: use the Document Inspector on a copy of your original, because it is not always possible to restore the data that it removes. Undo may not bring it back. Save a copy under a new name first, inspect the copy, and send that.
This tool covers the same ground in a different way. It works on a copy by design, because it never changes your original and always gives you a new file. It shows you what is inside before you decide. And it proves that the content you see did not change. The Document Inspector is still a good choice when you work inside Office and want to inspect a file you are editing.
- Make a copy of the file and work on the copy.
- Open File, Info, Check for Issues, Inspect Document.
- Run the inspection and read each result before removing it.
- Choose Remove All for the categories you do not want to share.
- Save, close the file, and open it again to check what is left.
Why saving as PDF does not remove everything
Many people send a PDF instead of an editable file, and that does hide comments and tracked changes from view if you export the final view. But a PDF made by Office carries its own properties, such as the author and title, and an export that includes markup can include comments. If a PDF is the goal, clean the source file first and export from the clean copy, then check the PDF's properties.
Pictures and charts inside the file
A photo pasted into a document keeps its own EXIF data. A phone photo in a Word report can still carry the GPS location where it was taken, the phone model, and the time. This tool finds the pictures in the file and removes that data from each one without re-encoding it, so the picture is identical, pixel for pixel. It uses the same method as the photo cleaner on this site.
Charts in Word and PowerPoint are different. A chart keeps a full copy of the spreadsheet it was made from, including cells and sheets that the chart does not show, and anyone can open it with Edit Data. The tool cleans the author details inside these embedded files but cannot remove their data, because the chart needs it. To leave no data behind, paste the chart as a picture.
How the cleaned file is checked
Cleaning is only useful if the file still opens and still says the same thing. After cleaning, the tool reads the result back from the same bytes you will download and runs a set of checks. Every part must unpack and match its stored checksum. Every link between parts must still point at something that exists, so Office does not report a damaged file. Parts that were not edited must be identical to the original, which shows exactly how much changed. A fresh scan must find nothing left in the categories you chose.
On top of that comes a check that depends on the kind of file. For Word, the text with all tracked changes accepted must be the same before and after. For Excel, every cell value and formula on every sheet, including hidden ones, must be the same. For PowerPoint, the text and the number of objects on every slide, including hidden slides, must be the same. If any check fails, the tool does not give you the file and tells you which check failed.
Limits and accuracy
- It supports .docx, .xlsx, and .pptx files and their macro-enabled and template variants. Older .doc, .xls, and .ppt files, and files protected with a password, are not supported. Open them in Office, remove the password, and save in a current format first.
- Hidden sheets, rows, columns, slides, and objects, pivot table data, embedded spreadsheets, and links to other files are reported but not removed, because removing them could change what the file calculates or shows.
- Macros are not changed. A macro project can have its own author and project names.
- A digitally signed file loses its signature when it is cleaned, because any change makes the signature invalid. Sign the clean copy again afterwards.
- Removing a sensitivity label or other custom property can be against your organization's rules. Check before you clean a labelled file.
- It cannot clean what is in the content itself. A name typed into the text, a client name in a header, or a file name that includes a person's name stays as it is.
- The checks prove the cleaned file is consistent and that its text, cells, and slides match the original. They do not replace opening the file in your Office program before you send it.
- Files larger than 100 MB are skipped, and up to 25 files can be added at once. Very large files take longer and use a lot of memory in your browser.
Frequently asked questions
How do I remove metadata from a Word document?
Add the document to this page, read the report, and press the button to remove the hidden data. You download a clean copy. Inside Word, you can do much of the same with File, Info, Check for Issues, Inspect Document, and Remove All, working on a copy of the file.
Does it remove tracked changes and comments?
Yes. Comments are removed together with their author list. Tracked changes are accepted, so deleted text and reviewer names are gone and inserted text stays as normal text. The tool then checks that the text you see is the same as the original with all changes accepted.
Will my formatting or layout change?
No. Only the parts that hold the hidden data are changed, and every other part is copied across unchanged. Slides are not touched at all, and every cell in an Excel workbook is checked to be identical. If you accept tracked formatting changes, the formatting you currently see is kept.
Is it safe to use with a confidential file?
The file is processed in your browser, and the code behind the tool makes no network requests, so the file is not uploaded. You can confirm this in the Network panel of your browser's developer tools. The only link that leaves the page is the one you choose to follow.
Why are hidden sheets and slides not deleted?
Formulas can read from hidden sheets, and hidden slides can be linked from other slides, so deleting them automatically could change your file in ways you do not expect. The report lists them with the steps to remove them in the Office program when you decide they should go.
Does the Document Inspector in Office do the same thing?
It covers similar categories, including comments, properties, hidden text, revisions, and hidden rows, columns, and sheets. Microsoft advises using it on a copy because removed data may not be restorable. This tool shows what is inside before anything changes, works on a copy by design, and checks the result.
Does saving a document as PDF remove its metadata?
Not completely. A PDF exported from Office has its own properties, such as the author and title, and comments can be exported with it. Clean the source file first, export from the clean copy, and check the PDF's properties before you send it.
Can I use it for Excel and PowerPoint files too?
Yes. For Excel it reports hidden sheets, rows, and columns, comments, the saved folder path, and pivot table data, and removes comments, properties, and paths. For PowerPoint it removes speaker notes, comments, and properties, and reports hidden slides and objects.
Research and references
This page was written and checked against the sources below.
- Microsoft Support: Remove hidden data and personal information by inspecting documents, presentations, or workbooks
- Library of Congress: OOXML Format Family, ISO/IEC 29500 and ECMA 376
- Ecma International: ECMA-376, Office Open XML file formats
- Microsoft Learn: Structure of a WordprocessingML document
- Microsoft Learn: Structure of a SpreadsheetML document
- Microsoft Learn: Structure of a PresentationML document
