PDF Page Info — Page Count, Dimensions, Form Fields & More
Beyond the standard metadata fields (title, author, dates), a PDF file carries structural information that the basic metadata viewer doesn’t surface: the exact dimensions of every page, the names and types of all interactive form fields, the PDF specification version, and encryption flags. This tool extracts all of it using the pdf-lib library — entirely in your browser, with no upload.
What information is shown?
- Page count. The total number of pages, derived from the PDF page tree.
- Page dimensions. Width and height of every page in points (pt), inches (in), and millimetres (mm). Named sizes (A4, US Letter, A3, A5, US Legal) are identified automatically. If all pages are the same size the tool notes that; mixed-size PDFs show each page individually.
- PDF version. Extracted directly from the
%PDF-x.xheader bytes. Values range from 1.0 (1993) to 2.0 (2017). Many security and feature flags depend on the version. - Encryption / security. A flag indicating whether the PDF contains or contained an Encrypt dictionary — relevant for documents distributed with access restrictions.
- Form fields. The name and type of every AcroForm interactive field (text boxes, checkboxes, radio buttons, dropdowns, signatures). Useful for verifying that a fillable form has been completed correctly or for auditing field naming conventions.
- Document metadata. Title, author, subject, keywords, creator application, and PDF producer library — the same fields shown in the PDF Metadata Viewer.
- XMP presence. Whether an XMP metadata stream is attached to the document catalog.
What are PDF points?
PDF uses points as its native unit: 1 point = 1/72 inch. An A4 page is 595 × 842 pt (8.27 × 11.69 in / 210 × 297 mm). A US Letter page is 612 × 792 pt (8.5 × 11 in). The tool converts all dimensions to inches and millimetres for convenience.
Why check page dimensions?
Documents assembled from multiple sources — scans, slides, presentations — can contain pages at wildly different sizes without any visible indication in a PDF viewer. Printers, publishers, and PDF preflight tools care about consistent page dimensions. Checking all pages before submitting a document for professional printing can prevent costly reprints.
Related tools
- Use PDF Metadata Viewer for a focused view of the document information dictionary.
- Use PDF Metadata Remover to strip author, title, and other document metadata.
- Use PDF XMP Viewer to inspect the full XMP metadata stream.