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Metadata

Why PDF information is still visible after removing metadata

By DeckleUpdated

If information is still visible after you remove metadata from a PDF, it is usually in a place metadata removal does not cover: the page text, a comment, a form field, the file name, or a property your reader shows from the original file. Check that you opened the "(clean)" copy, then find where the information sits. Remove PDF metadata removes document properties, the XMP packet, the document identifier and embedded attachments, and nothing on the pages.

Remove PDF metadata

Three different privacy tasks

Password

Controls access

Metadata

Document properties

Redaction

Selected page content

Choose the change; inspect the saved copy

Conceptual comparison · access, properties and content require separate checks. No single task certifies complete privacy.

How to check the cleaned copy

  1. Close every open copy of the PDF.
  2. Open the file with "(clean)" in its name, not the original. Deckle never changes the original, so it still has all its metadata.
  3. Open its document properties in your reader and see which fields are still filled in.
  4. Choose the cleaned copy in Remove PDF metadata again. The list now shows only what is left.
  5. Tick anything that should go and choose Remove metadata. If the list says "No supported metadata found", the remaining information is outside metadata.

Find where the information is

What you still see Where it is How to remove it
Author or title in your reader's properties The original file, a cached view, or an item you left unticked Open the "(clean)" copy and check the Deckle list again
A name in the header, footer or text Page content Edit the source and export again, or redact it
A name next to a sticky note or highlight A comment (annotation) Delete comments in a PDF editor, or flatten them
Typed answers in boxes Form field values Clear the fields, or flatten the form in a PDF editor once it is finished
An old name in the downloaded file name The file name Rename the file
Text that appears when you select a blank area Hidden or white text on the page Remove it in the source, or redact the area
A Company or other custom field in Acrobat's properties A custom property, which Deckle does not list Clear it in the source app, or in Acrobat's Custom tab

Why removal and page content are separate

Metadata describes a file; page content is what the file shows. A contract can have an empty Author field and still print "Prepared by Jane Smith" on page 1. Deckle's empty state says this: "This tool scans metadata, not page text." Removing metadata never edits the words on a page, so it cannot damage the layout, but it also cannot hide what the reader sees.

A field came back after another edit

If the cleaned copy was correct but a later version shows the author or app again, the PDF was saved by another app after cleaning. Merging, rotating, signing, printing to PDF or saving in an editor can all write fresh properties. Clean the final file just before you send it. Why the author name reappears in a PDF covers the common causes.

Readers that show more than metadata

Some readers display information that is not stored in the PDF at all:

  • File size, location and dates from your file system. These come from your computer, not the document.
  • Page size, page count and PDF version. These describe the file's structure. They are not removable metadata.
  • Fonts used. The fonts list names the typefaces embedded to draw the text. It identifies software, not people.

Deckle does not remove any of these, and none of them names an author.

Tips

  • Name your copies clearly. Keeping "(clean)" in the file name until you send it avoids opening the wrong version.
  • Search the pages. Use your reader's find command for your name, your organisation and project codes before sending.
  • Check comments separately. Open the comments panel; reviewers' names appear on every note.
  • Clean last, every time. Make metadata removal the final step before the file leaves your device.

Frequently asked questions

I ticked Select all. Why is there still information in the properties?

Your reader may be showing the original, or file-system details such as size and location. Choose the "(clean)" copy in Deckle: if the list is empty, every supported metadata item is gone.

Does Remove PDF metadata delete comments?

No. Comments are part of the page annotations and are not in the scan. Remove them in a PDF editor before or after cleaning.

Can Deckle remove a name from the page text?

Not with Remove PDF metadata. Change the source document, or redact the text from the page.

Does Deckle check that removed items are really gone?

Yes. After saving, it reopens the new file, checks that every item you ticked is gone and compares each page with the original. It does not search the pages or other fields for the same words.

Related tools

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