PDF Metadata Editor
🔒 Files never leave your device
Drop a PDF file here
or click to browse — metadata loads instantly
What you can edit
  • Title — the document title shown in PDF viewers and browser tabs
  • Author — the person or organisation that created the content
  • Subject — a brief description of the document topic
  • Keywords — comma-separated tags for search and indexing
  • Creator — the application used to create the original document

Related Tools

See all ->
PDF MergerCombine PDFs, no upload neededPDF SplitterExtract pages or split to ZIPPDF UnlockRemove PDF password & restrictionsPDF WatermarkAdd text or image marksPDF CompressorReduce PDF file sizeResume BuilderPrivacy-first, no AI, instant PDFFreelance Invoice GeneratorCreate & download PDF invoicesWord CounterReadability & keywords

Free PDF Metadata Editor — Edit Title, Author, Keywords Online, No Upload

Edit PDF title, author, subject, keywords, and creator in your browser. Original values pre-filled on upload. Files never leave your device.

Updated May 14, 2026
Share & Support

Features

100% client-side — your PDF never leaves the browser
Reads and pre-fills all existing metadata on upload
Edit Title, Author, Subject, Keywords, and Creator fields
Original value shown as a hint when any field is changed
Reset button restores all fields to original values in one click
Unsaved changes indicator in the toolbar keeps you aware
Modification date updated automatically on every save
Keywords field accepts comma-separated values of any length
No watermark, branding, or stamp added to output file
No account, sign-up, or email address required

About this tool

Every PDF file contains a hidden layer of descriptive information called metadata — fields like Title, Author, Subject, and Keywords that live in the PDF's document information dictionary, separate from the visible page content. PDF viewers display this information in the document properties panel, and search engines, document management systems, and enterprise content platforms index it to make files discoverable. When metadata is missing, wrong, or carries leftover information from the original template, it creates confusion and makes documents harder to find.

Unlike most PDF metadata editors, this tool runs fully in your browser using the open-source pdf-lib library, so no data is uploaded and your document details stay private. Upload a PDF, and pdf-lib immediately calls getTitle(), getAuthor(), getSubject(), getCreator(), and getKeywords() to read the current dictionary values; because getKeywords() can return either an array or a plain string depending on how the PDF was produced, the tool normalizes it into a single comma-joined field so it always displays and edits the same way regardless of source.

Edit any field you want, and the original value is shown as a hint below each changed input so you can always compare before and after. One detail worth knowing: on save, the tool only calls setTitle(), setAuthor(), setSubject(), or setCreator() when a field currently holds a truthy value, so clearing a text field back to empty will not erase existing metadata in that field — to genuinely remove a value you need to save it once with different text or use the Reset button and edit again with intent. Keywords behave differently: whatever you type is always split on commas, trimmed, filtered for blanks, and written back as a fresh array, so an emptied keywords field really does clear all tags.

Only the metadata fields are modified — page content, fonts, images, and layout are untouched, and pdf-lib reloads the source with ignoreEncryption enabled so owner-restricted PDFs (with no open password) can still be edited. A Reset button restores every field to its upload-time snapshot, an unsaved-changes indicator tracks drift from that snapshot, and the Modification Date updates automatically on save. Common scenarios include correcting an author field left over from a shared template, adding keywords before publishing to a document portal, fixing a title so it displays correctly in browser tabs, and replacing creator information before sharing a file externally.

How to Use

  1. 1
    Upload your PDFDrag your PDF onto the drop zone or click to open a file picker. The file is read locally into your browser — nothing is uploaded. All existing metadata fields are extracted immediately and pre-filled into the form so you can see exactly what is already there.
  2. 2
    Review the pre-filled valuesEach form field shows the current metadata value from the PDF. Fields that are empty in the original file appear blank. Take a moment to review what is already set before making changes — this helps you avoid accidentally clearing useful information. If the file is password-protected, run it through PDF unlock first.
  3. 3
    Edit the fields you want to changeClick into any field and type your changes. When you edit a field that previously had a value, the original text appears as a small hint below the input so you can always compare. The "● Unsaved changes" badge appears in the toolbar as soon as you make any edit.
  4. 4
    Update the Keywords fieldEnter keywords as a comma-separated list in the Keywords field — for example: finance, quarterly, 2025, report. Each comma-separated entry becomes a separate keyword tag in the PDF's metadata. You can add as many as you like.
  5. 5
    Reset if neededIf you want to start over, click the Reset button in the toolbar. This restores all fields to exactly the values they had when you first uploaded the file. The Modification Date is not reset — it will still be updated to the current time when you save.
  6. 6
    Save and downloadClick "↓ Save & Download" in the toolbar. The browser writes your changes into the PDF metadata using pdf-lib and downloads the result as originalname-edited.pdf. The Modification Date is automatically set to the current time. The entire process completes in under a second.

Common Use Cases

◉
Fix metadata before publishing
PDFs published to a website or document portal are indexed by their metadata. Before publishing, use this tool to ensure the title is correct, the author field is accurate, and keywords are set so the document appears in search results within the platform.
▦
Correct template author carryover
When a PDF is created from a shared template, the Author and Creator fields often contain the name of whoever created the template — not the current document's author. Fix this before sending so recipients see the right name in document properties.
◑
Prepare files for a document management system
Enterprise DMS and archival platforms like SharePoint and OpenText index PDF metadata for search and classification. Adding accurate Title, Subject, and Keyword fields before uploading makes documents discoverable by the right teams without manual tagging.
△
Improve PDF SEO for web publishing
Search engines can read PDF metadata. A clear Title and a well-chosen set of Keywords improve the chances that a published PDF appears in relevant search results. This matters for white papers, research reports, and product documentation hosted publicly.
⚡
Strip or replace revealing metadata
PDFs exported from Word or other office tools embed the author's name, the company name, and sometimes the original file path as metadata. Before sharing a document externally, clear or replace these fields to avoid leaking internal information.
≡
Organise a personal PDF library
Downloaded research papers, manuals, and eBooks often have missing or incorrect titles that make them hard to identify in a file manager. Add proper Title and Author metadata so the files sort and display correctly in PDF readers and operating system previews.

Frequently Asked Questions

PDF metadata is a set of descriptive fields embedded in the file that are separate from the visible page content. The core fields are Title, Author, Subject, Keywords, and Creator. PDF viewers like Adobe Acrobat show this information in the document properties panel. Search engines and document management systems also index metadata to make documents discoverable. Incorrect or missing metadata can make files hard to find and look unprofessional when shared.

No. This tool runs entirely in your browser using the open-source pdf-lib JavaScript library. Your file is read from disk into browser memory, the metadata is updated locally, and the result is downloaded straight to your device. No data is ever transmitted to a server. This makes it safe to use with confidential documents.

You can edit five fields: Title (the document name shown in PDF viewer title bars and browser tabs), Author (the person or organisation that wrote the content), Subject (a short description of the topic), Keywords (comma-separated tags used for search and indexing), and Creator (the application that originally produced the document, such as Microsoft Word or Adobe InDesign). The Modification Date is updated automatically when you save.

No. Metadata is stored in a separate section of the PDF file structure and has no effect on the visible pages. The text, images, layout, and formatting of every page remain exactly as they were in the original file. Only the document properties fields are changed.

Yes. When you upload a PDF, all existing metadata is read and pre-filled into the form fields. If you change a field, the original value is shown below it as a hint so you can always see what was there before. You can also click the Reset button in the toolbar to restore all fields to their original values.

If a PDF was created without metadata, the fields simply load as empty. You can fill them in from scratch. This is common with PDFs exported from design tools, scanned documents, or files that have been through a compression or conversion process that strips metadata.

No watermarks are added. The output file contains your original page content with the updated metadata fields. The Creator field is not overwritten by this tool — only the fields you explicitly edit are changed. Add visible stamps separately with the PDF watermark tool.

Completely free, no account, no email, no sign-up of any kind. Open the page and start editing immediately. Because all processing happens in your browser there are no server costs, so there is no premium tier or usage limit. The PDF merger and PDF splitter work the same way.

The tool attempts to load password-protected PDFs using pdf-lib's ignoreEncryption option, which works for owner-restricted PDFs. PDFs that require a user password to open cannot be processed — use the PDF Unlock tool first to remove the password, then edit the metadata.