PDF Info for Metadata, Size, and Details

What each line of the report means

The report has four blocks: document basics, metadata, structure flags answered with Yes or No, and security. Lines for viewer settings, keywords, custom properties and attachments only appear when the file has them.

PDF version

The PDF specification version the file declares, for example 1.4, 1.7 or 2.0.

Page count and Page sizes

The number of pages, then every distinct page size once, as width x height in points. A 200-page document on A4 shows one size line; a scan that mixes A4 and A3 pages shows two. Rotated pages are listed as they appear on screen.

Title, Author, Subject

The document information fields. Many PDF viewers and browser tabs display the title instead of the file name. An empty value means nothing is stored.

PDF Producer and Content creator

The software that wrote the PDF and the application the content came from, such as a word processor.

Creation date and Modification date

Dates stored in the document metadata. They can appear in PDF date syntax or as an ISO-style date from XMP metadata. The worked example below explains PDF date syntax.

Page mode, Page Layout, Viewer Prefs

How the file asks to be opened, for example UseOutlines (bookmark panel open) or TwoColumnLeft (two pages side by side).

Keywords and Properties

Keywords, one per line, and custom name = value properties that document systems and some applications add.

Tagged

Yes means the file contains a structure tree that screen readers use to follow headings, lists and reading order. Accessible PDFs need tags, but tags alone do not prove that a file is accessible.

Hybrid, Using XRef streams, Using object streams

How the internal structure is stored. Object and cross-reference streams, introduced with PDF 1.5, can compress structure data. Overall file size depends on the contents. A hybrid file also keeps a classic cross-reference table for older readers.

Linearized

Yes means the file is saved for Fast Web View: a viewer can show the first page while the rest is still downloading.

Watermarked

Reports watermark or stamp markers recognized by the PDF library, such as those added with Watermark PDF. A visible logo or text saved as ordinary page content is outside the scope of this flag.

Thumbnails, Form, Outlines, Names

Whether the file embeds page thumbnails, has a form structure, has bookmarks (outlines), and uses name trees, which hold named link targets and the list of attached files. Conditional Signatures and AppendOnly lines report signature and form flags; they do not validate digital signatures.

Encrypted and Permissions

Full access means no restrictions. An encrypted file that opens without a password lists permission bits, each true or false: bit 3 printing, bit 4 editing, bit 5 copying text and images, bit 6 comments and form filling, bit 9 filling existing form fields, bit 10 extraction for accessibility, bit 11 inserting, rotating or deleting pages, bit 12 high-quality printing.

Attachments

The names of files embedded in the PDF. You can save them with Extract PDF Attachments.