PDF HERE.
Your file never leaves this tab.
Everything runs in JavaScript (and WebAssembly) on your device. We can't see your PDF, and neither can our servers — because your file never touches them.
HOW FILE INFORMATION WORKS.
01. Drop
Drag your file onto the box, or click to pick one from your device.
02. Tweak
Set the options in the sidebar. Defaults work for most.
03. Download
Hit the big button. Your file is ready in seconds — never leaves your browser.
ABOUT FILE INFORMATION.
Every PDF carries metadata beyond its visible pages — title, author, creation and modification dates, the software that produced it, page dimensions, and whether it contains form fields, encryption, or other structural features. minipdftoosz's File Information tool reads all of this using pdf-lib and displays it in one clear summary, without needing to dig through a PDF viewer's properties dialog (which, depending on the viewer, can be buried several menus deep or missing entirely).
This metadata can be genuinely useful for more than idle curiosity: confirming which software actually generated a PDF you received (useful when troubleshooting a rendering inconsistency), checking creation and modification timestamps when document provenance or recency matters, or verifying page count and dimensions match what you expect before relying on a file for something specific like printing at a particular size.
It also surfaces structural properties that aren't visible just by looking at a rendered page — whether the PDF has interactive form fields (relevant before you reach for Fill PDF Forms), whether it's password-protected (relevant before you try to open or process it further with another tool), and basic page-count and dimension data useful for planning a Resize or Crop operation without needing to load the file into a separate tool just to check first.
Because reading metadata doesn't require rendering any page content, this is a fast, lightweight operation — useful as a quick first look at an unfamiliar PDF before deciding what, if anything, you actually need to do to it, rather than opening a heavier viewer or editor just to answer a basic "what is this file, exactly" question.
If a document's metadata shows an unexpected producing application or an oddly recent modification date relative to when you thought it was created, that's often worth a second look — not necessarily a red flag, but a useful data point when you're trying to understand exactly how and when a file you received actually came to be.
Anyone troubleshooting an unfamiliar PDF's origin, checking whether it's form-enabled or encrypted before deciding what to do with it, or simply curious about a file's basic properties, is the core audience for File Information.
This tool is also a fast way to confirm a PDF isn't secretly larger or more complex than it looks — checking page count and dimensions before committing to print a document at a particular size, avoiding a wasted print run over an assumption that turned out to be wrong.
- Check here first for an unfamiliar PDF to quickly see page count, form fields, and encryption status before choosing your next tool.
- Creation/modification dates and producing software can help confirm a document's provenance or troubleshoot an odd rendering issue.
- Metadata reading doesn't touch page content, so this is typically one of the fastest tools on the site.
FAQ.
Common questions about file information. Something else on your mind? Ask us.
Yes. Free forever. No sign-up. No credit card. No trial.
Never. Everything runs locally in your browser using JavaScript and WebAssembly.
Only limited by your browser’s memory. Most laptops handle 100MB+ with ease; very large files may be slower.
Once the page and its tool script have loaded, yes — processing runs entirely client-side.