PDF Page Counter
Count PDF pages and inspect dimensions free — see each page's size in points and millimetres, named format and orientation. Private, in your browser.
About the PDF Page Counter
Get an instant breakdown of any PDF: the total page count, how many pages are portrait versus landscape, and a per-page table of dimensions in both points and millimetres, the matched named size (A4, Letter, Legal and more) and orientation. It flags whether every page shares the same size or the document mixes formats.
This is handy before printing (to confirm everything is A4), when preparing files for a print shop, or when debugging a document that mixes page sizes and orientations. It reads the page boxes directly with pdf-lib, so the numbers are exact.
The PDF is analysed entirely on your device — nothing is uploaded, stored or logged. There are no limits or sign-ups.
How to Use the PDF Page Counter
- 1Upload the PDF you want to inspect.
- 2Read the totals for pages and orientation.
- 3Scan the per-page table for sizes and named formats.
- 4Use the details to check the file before printing or sharing.
Frequently Asked Questions
Why does the page count matter?
Knowing the exact count helps with print estimates, page-limit submissions, and confirming a merge or split produced the right number of pages. This tool reads the count straight from the PDF structure, so it is always accurate.
What are PDF points and how do they map to real size?
PDF measures pages in points, where 72 points equal one inch (about 25.4 mm). An A4 page is roughly 595 × 842 points, and Letter is 612 × 792. The tool shows both points and millimetres, plus the matched named size where it recognises one.
Can it detect mixed page sizes?
Yes. If pages differ, the summary says so and the per-page table shows each page's exact dimensions and orientation, making it easy to spot the odd page out.
Is my PDF uploaded?
No. Everything is read locally in your browser with pdf-lib; the file never leaves your device.