Toolerax logoToolerax
·6 min read

How to Check a PDF's Details and Metadata

How to Check a PDF's Details and Metadata

Before you split, print, submit or share a PDF, it helps to know a few things about it: how many pages it has, what size those pages are, whether it is locked, and whether it holds real text or is just a scan. All of that lives in the PDF's structure and metadata. This guide walks through each detail, what it means, and why it is worth a ten-second check before you act on a document.

Page count

The most-asked question about any PDF. Beyond simple curiosity, the count matters because many systems have page limits — a print shop, a court filing portal, an application form that accepts “up to 10 pages.” Knowing the count up front tells you whether you need to split the document first. It is also how you sanity-check a merge: if you combined a 3-page and a 5-page file, the result should be exactly 8.

Page dimensions and format

A PDF stores each page's size, and it is not always what you expect. A document may look fine on screen but be built on A4 pages when your printer expects US Letter, or mix page sizes within one file. Checking the dimensions tells you:

  • The paper format — A4, US Letter, Legal, A5 and so on — so printing lines up without unexpected margins or scaling.
  • Orientation — portrait or landscape, per page.
  • Mixed sizes — a warning sign if a document should be uniform but is not.

Word count — and what it reveals

A PDF's word count is useful in itself for reports and submissions, but it also answers a subtler question: does this PDF actually contain text? If a document looks full of writing but reports a word count of zero, it is a scanned image, not a text-based PDF — the words are pixels, not text. That single number tells you whether extracting the text will work or whether you are dealing with a scan that would need OCR.

File size and PDF version

The file size flags whether a document will sail through an upload limit or need compressing first, and an unexpectedly large file often points to high-resolution embedded images. The PDF version (1.4, 1.7, 2.0 and so on) rarely matters day to day, but if an old system rejects a file, an unusually new version can be the reason.

Author, producer and dates

PDFs carry metadata about their origin, and it is easy to forget it is there:

  • Author and title — often auto-filled from the original document or the account that created it.
  • Producer and creator— the software that made the PDF (Word, a design app, a scanner's driver). This is a strong clue as to whether a file is text-based or scanned.
  • Creation and modification dates.

This is worth knowing for privacy, too: if you are sharing a PDF publicly, be aware it may carry your name or your software details in its metadata.

Encryption and permissions

A PDF can be locked in two ways, and the info tells you which you are facing. It may need a password to open, or it may open freely but restrict printing, copying or editing. If a tool refuses to process your file, the encryption status usually explains why — you will need to unlock it first. Knowing this before you start saves you puzzling over a mysterious failure later.

Step by step

  1. Open your PDF in the info viewer, or paste it from the clipboard.
  2. Read the summary. Page count, dimensions, word count, size, version, metadata and encryption status all appear at once.
  3. Act on what you learn — split if it is too long, compress if it is too big, extract text if it has any, or unlock it if it is protected.

Privacy: inspected on your device

Reading a PDF's details never requires uploading it. A browser-based viewer parses the file locally, so even a confidential document stays on your machine while you inspect it. It is instant and works offline.

Frequently asked questions

How do I know if my PDF is a scan or real text? Check the word count. Lots of visible text but a count of zero means it is a scanned image.

Why does my PDF have someone else's name in it? The author field is inherited from the original document or account. It is metadata, not part of the visible content.

What does it mean if a page size is not A4 or Letter? The document uses a custom or non-standard size, which can cause scaling when printing. Worth knowing before you send it to a printer.

Can I see the metadata without special software? Yes — a browser-based info viewer shows it all, no installation and no upload.

Inspect your PDF now

Use our PDF Info Viewerto see any document's page count, size and metadata in seconds — in your browser, with no upload. Once you know what you are working with, Split PDF trims it down, PDF to Text pulls out the words, and PDF to JPG turns pages into images.

Written by the Toolerax Team

We are the developers who design, build and test every one of the 100+ free tools on Toolerax. Each guide is written alongside the tool it explains and checked against how the tool actually works. About us

Tools mentioned in this article