PDF Metadata Editor

View and edit PDF document metadata: title, author, subject, keywords, creator, producer. Strip identifying info before sharing PDFs.

1.0.0
Version
Auth
Batch

About PDF Metadata Editor

Every PDF carries an Info dictionary with eight standard fields — Title, Author, Subject, Keywords, Creator (originating app), Producer (PDF library), Creation Date, Mod Date. Adobe Acrobat lets you edit them, but Acrobat costs money and isn't always to hand. For an HR-bound CV, a peer-review submission, a contract going to opposing counsel or a public-records release, these fields are a small but real privacy leak — your username from Word's auto-fill, the company name from your Acrobat install, the exact creation timestamp matching when you actually wrote the doc.

This PDF metadata editor does the targeted version — view the current Info dictionary, edit any subset of the eight fields to specific values, and download a fresh PDF with the new metadata baked in. Fields are whitelisted server-side so a hand-crafted JSON payload can't inject arbitrary PDF objects. The PDF's actual content stream — pages, fonts, embedded files, forms, signatures — passes through unchanged; only the /Info dictionary in the trailer is rewritten. Page count, PDF version and document structure stay byte-identical to the original. Files up to 50 MB.

Use it to scrub author and creation date before sending a CV to a recruiter, blind a paper draft for double-blind peer review, change the title that shows up in browser tabs and PDF readers, set a consistent producer name across a batch of documents, audit which PDF library a downloaded document was generated by, or fix a client's typo-laden title before forwarding. The PDF is processed in a stateless serverless function and deleted immediately after the response.

PDF Metadata Editor Use Cases

  • Job seekers scrubbing author and creation date from a CV before uploading to recruiters
  • Academics blinding paper drafts for double-blind peer review submission
  • Legal teams stripping author and dates from a contract going to opposing counsel
  • Authors setting a consistent title that shows up in browser tabs and PDF reader title bars
  • Forensic analysts auditing which PDF library generated a downloaded document
  • Publishing pipelines stamping a uniform Creator and Producer across batches
  • Fixing a client's typo in the Title field before forwarding a deliverable

PDF Metadata Editor Features

  • Edits the eight standard Info-dictionary fields — Title, Author, Subject, Keywords, Creator, Producer, Creation Date, Mod Date
  • Server-side field whitelist — hand-crafted JSON cannot inject arbitrary PDF objects into the document
  • Only the /Info dictionary in the trailer is rewritten; pages, fonts, forms, signatures and embedded files stay byte-identical
  • Page count and PDF version preserved through the round-trip — Acrobat and PDF.js render the output identically to the input
  • Extract action shows the current Info dictionary without modifying the file, so you can audit before deciding what to change
  • Date fields accept both ISO timestamps (2026-06-04T10:00:00Z) and PDF's native D:YYYYMMDD format
  • Files up to 50 MB processed in a stateless serverless function and discarded immediately after the response

How to Use PDF Metadata Editor

Upload your PDF

Drag-and-drop or click to select a PDF (up to 50 MB). Any PDF version 1.4 through 2.0 works, including signed PDFs (note: editing metadata may invalidate the signature — see FAQ).

Extract to see current metadata

Click Extract. The current Info dictionary is read and shown in a table — Title, Author, Subject, Keywords, Creator, Producer, Creation Date, Mod Date. The most common author leak comes from the Author field; the most common app leak from Creator.

Edit the fields you want to change

Type new values into the editable fields. Leave any field blank to clear it (sets to an empty string), or leave unchanged to keep the original. Each field is independent — change author without touching the dates, or vice versa.

Click Update

The /Info dictionary is rewritten with your new values and the document content (pages, fonts, embedded files) passes through unchanged. A new PDF is returned with the updated metadata baked in.

Download and verify

Download the rewritten PDF. Open it in Acrobat, Preview or your browser's File → Properties dialog to confirm the metadata changes landed. The rendered content will be identical to the original.

PDF Metadata Editor FAQ

No. Only the /Info dictionary in the trailer is rewritten. Page content streams, fonts, embedded files, form fields, annotations and signatures all pass through byte-identical. Open the rewritten PDF alongside the original in Acrobat or Preview and the rendered output is indistinguishable.

The eight standard PDF Info dictionary fields: Title, Author, Subject, Keywords, Creator (the originating application name, e.g. 'Microsoft Word'), Producer (the PDF generation library, e.g. 'Adobe PDF Library 21.0'), Creation Date, and Modification Date. Custom XMP metadata in the document's metadata stream is not currently exposed — for those, dedicated tools like exiftool or qpdf are the right path.

Likely yes. PDF signatures cover the document at a specific revision. Any modification — even just changing the Title — adds an incremental update and breaks the signature's 'unmodified since signing' guarantee. If you need to preserve a signature, don't edit metadata on a signed PDF. If you must change metadata, do it before signing.

50 MB. This covers the vast majority of documents including image-heavy PDFs and scanned multi-hundred-page collections. Very large PDFs (full-resolution photo books, multi-thousand-page archives) can exceed 50 MB — for those, qpdf or pikepdf in a local Python script handles arbitrary sizes efficiently.

Functionally similar — both edit the Info dictionary. The differences: this tool runs in a browser without a $24/month Acrobat subscription, doesn't require an install, and exposes the field set directly without menu-clicking through the Document Properties dialog. Acrobat wins for custom XMP metadata and signed-doc workflows; this tool wins for one-off cleanups and batch sanitisation pipelines.

Yes — leave every field blank and click Update. The resulting Info dictionary is empty (or contains only the fields whose absence would break older readers, like Producer). For maximum anonymity, also clear the XMP metadata stream — that's a separate operation this tool doesn't currently expose. The combination of empty Info + empty XMP gives you the cleanest output.

Yes, to a stateless serverless function — rewriting the PDF object structure requires a real parser (qpdf/pikepdf) that doesn't run in the browser. The file is deleted immediately after the response, and nothing is logged to durable storage. For maximum privacy (no transit at all), use exiftool or pikepdf locally — single-command operations both.

Drop your .pdf file here or click to upload

PDF documents only • Max 50MB

PDF Metadata Editor Tutorial

Why edit PDF metadata?

Every PDF carries an Info dictionary with title, author, subject, keywords, and tool fingerprints (Creator/Producer). When you share a PDF with a client, this metadata travels with it.

  • Privacy: Strip your name from a PDF before sharing externally
  • SEO: Set a real title and keywords so the PDF ranks in search results
  • Whitelabel: Replace "Microsoft Word" producer with your tool's branding
  • Forensics protection: Avoid revealing what tool/version converted the PDF

How does it work?

This tool reads the PDF's Info dictionary and lets you edit the standard fields. The PDF content itself (pages, fonts, images, annotations) is preserved unchanged. Only the /Info trailer dictionary is rewritten. Password-protected PDFs are not supported — you must remove encryption first.

Editable fields

  • Title — Document title shown in viewers
  • Author — Document author
  • Subject — Subject line
  • Keywords — Comma-separated keywords (helps search)
  • Creator — Application that created the original (e.g. "Microsoft Word")
  • Producer — Tool that wrote the PDF (e.g. "Adobe Acrobat")
  • CreationDate, ModDate — ISO 8601 (e.g. 2023-05-12T10:00:00Z) or PDF format (D:20230512100000Z)

Leave a field blank to remove it entirely. Page count and PDF version are not editable — they reflect the document content.