PDF Metadata Viewer
Upload a PDF to view its metadata — title, author, subject, keywords, creator, producer, dates, and page dimensions.
Drop your PDF file hereTap to select a file
Supports PDF, up to 200MB
What to do next
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pdfAbout PDF Metadata Viewer
PDF Metadata Viewer is a single-page tool for the common PDF document workflow task it is named after. Upload a PDF to view its metadata — title, author, subject, keywords, creator, producer, dates, and page dimensions. The interface keeps the input on one side, the configurable options in the middle, and the result on the other side. Most jobs start and finish without any scrolling.
From a technical standpoint, PDF Metadata Viewer is JavaScript and the open-source pdf-lib JavaScript library running in your tab. The browser is the runtime; the page is the interface. Inputs accepted: PDF. Maximum input size: 200 MB per run.
PDF Metadata Viewer parses your file with the open-source pdf-lib JavaScript library entirely inside the browser, applies the options you selected, and returns a download. The processing has no network step, which means a slow or intermittent connection does not slow down the work — once the page is loaded, only your CPU and RAM are involved.
Typical users of PDF Metadata Viewer include real-estate agents bundling disclosures, legal teams preparing exhibit bundles and students assembling reading packets. The thread connecting all of them is the same: a focused PDF document workflow task that fits cleanly into a browser tab and benefits from a tool with sensible defaults and minimal setup.
PDF Metadata Viewer works well as a bookmarked utility you reach for when you need it. The first visit shows you what the tool does; the second is when you realise it is a low-friction option for the task and worth keeping in your tab list.
The 200 MB ceiling on input size is the only fixed limit. Output files are produced in standard formats that every common viewer recognises, and the tool runs the same way regardless of how many times you have used it during the session.
As a workflow component, PDF Metadata Viewer is the part you reach for when a single, well-defined PDF document workflow step needs to happen. It performs that step and returns a standard file you can carry into the next part of your pipeline.
Some notes on the design of PDF Metadata Viewer. The page is intentionally narrow: one input, the controls relevant to the task, and one output. Adding unrelated features would make the common case slower for the majority of users, so the surface is held to what people actually use.
The output handed back by PDF Metadata Viewer is `{name}-metadata.txt`. If you would prefer to keep the result in the browser instead of downloading it, you can copy it from the result panel and paste it directly into another tab — useful when the next tool in your workflow expects pasted text rather than a file.
A short note on how PDF Metadata Viewer came to look the way it does: every iteration started by watching how someone unfamiliar with the tool actually used it, then removing whatever got in their way. That is why the upload area dominates the screen, the run button is bigger than the secondary controls, and the result panel is unmissable when the job finishes.
If you also use a command-line tool for pdf metadata viewer, PDF Metadata Viewer is a convenient alternative for the times you are on a different machine or helping someone who is not comfortable in a terminal. The output is a standard file in the format documented above.
If you want to get the most out of PDF Metadata Viewer, three small habits help. Drag-and-drop is faster than the file picker once you get used to it. The keyboard shortcut for downloading the result is whatever your browser uses for "save link as," because the result is a normal download. And if you are working on a sensitive file, processing in an Incognito or Private window is a good extra layer — it leaves no trace in browser history when the tab closes.
For most failure modes, refreshing the page and re-running the job is enough — the engine has no persistent state to corrupt. If the same input fails twice in a row, the input itself is most likely the problem (a truncated file, an unexpected variant of the format, or a stream the engine does not recognise).
PDF Metadata Viewer is intentionally narrow in scope so the common case is fast and the result is predictable. If you ever need a variation it does not cover, browse the rest of the catalog — there is a good chance an adjacent tool already exists, and switching between tools is just a matter of opening another tab.
How it works
- 1Reach the PDF Metadata Viewer page in your browser to begin.
- 2Drop a PDF file onto the upload area, or click to pick one from your device.
- 3Pick any non-default settings you need. Most users leave the defaults alone for the first run and only revisit if the result needs tuning.
- 4Trigger processing. the open-source pdf-lib JavaScript library reads your input, applies the transformation, and writes the result back into the page.
- 5Save the output (`{name}-metadata.txt`) when it is ready.
- 6Run additional jobs as needed. The same controls and defaults apply on every run.
Common use cases
- Extract a specific signed page from a long contract bundle using PDF Metadata Viewer.
- Strip blank or test pages from a scanned document.
- Combine a cover letter into a single application packet.
- Rotate scanned pages that came in upside-down from the office scanner.
- Lock a confidential document with a password before sharing externally.
- Add page numbers to a draft report before circulating it for review.
- Compress a marketing deck so the email send-out finishes in seconds.
- Shrink a scanned study packet so it fits past an email gateway.
- Convert a bundle of flyers into a single archival PDF.
- Send a polished, print-ready PDF to a client without watermarks.
FAQ
How does it work?
Upload a PDF file and the tool extracts and displays all metadata fields in a structured report.
Which fields?
Title, Author, Subject, Keywords, Creator, Producer, Creation Date, Modification Date, and per-page dimensions.
Private?
Yes — analysis runs entirely in your browser.
Output format?
A text report you can download or copy, plus a summary of all fields.
Edit metadata?
Use the PDF Metadata Editor tool to modify fields after viewing.
Large PDFs?
Works with PDFs of any size — only metadata is read, not content.
Is PDF Metadata Viewer really free?
PDF Metadata Viewer is free to use. The processing runs in your browser, which keeps the per-user cost low enough that the tool can be offered openly. The download is the same file the engine produced — you can use it for as many runs as you need.
Why does PDF Metadata Viewer feel slow on large inputs?
Most jobs finish in seconds. Speed scales with input size and with how many CPU cycles your browser tab has available — the engine runs in your browser, so it shares resources with whatever else you have open. For inputs near the 200 MB ceiling, expect anywhere from a few seconds to roughly a minute on a typical laptop. Closing other heavy tabs noticeably speeds things up.
How often is PDF Metadata Viewer updated?
PDF Metadata Viewer is updated whenever the underlying engine releases an improvement or a bug fix. Because the tool is delivered as a static page, every visit fetches the latest version automatically — there is no "version" to manage on your end. If a particular release ever changes default behaviour, the change is documented on Favtoo's changelog so you can confirm what shifted.
Can I trust the output of PDF Metadata Viewer for important work?
PDF Metadata Viewer is built on the open-source pdf-lib JavaScript library, which is the same class of engine used by professional PDF document workflow pipelines. For deterministic operations, the output is byte-identical to what an equivalent CLI run would produce; for operations involving a codec or a model, the result is well within the range of what comparable tools generate. If you have a specific reference output you need to match, run a small test job first to confirm the configuration produces what you expect.
Is PDF Metadata Viewer licensed for business use?
PDF Metadata Viewer can be used for personal and commercial work alike — there is no separate "business" licence to purchase. The output you generate is yours to use however you want, including in client deliverables, internal documents, or commercial products. Favtoo's only ask is fair, individual use; the tool is not designed to be embedded as a backend service or wrapped behind an API for resale.
Does PDF Metadata Viewer have an API?
PDF Metadata Viewer is a browser-only tool by design and does not expose a hosted API. The reason is the same as the privacy story: there is no Favtoo backend doing the work, so there is no service to call. If you need to script the same transformation, the underlying engine (the open-source pdf-lib JavaScript library) is open-source and can be used directly from your own code.
Does PDF Metadata Viewer work on a phone or tablet?
PDF Metadata Viewer runs in any modern mobile browser — Safari, Chrome, Firefox and the in-app browsers in most messaging apps all support the underlying APIs. Performance depends on the device: a recent phone handles typical inputs nearly as fast as a laptop, while older devices may take a few seconds longer near the 200 MB ceiling. The interface lays out cleanly on small screens, so you do not need to pinch-zoom to see the controls.