Any regular PDF document contains metadata, i.e. information about the
document itself. The Document Properties dialog
box of Adobe Acrobat,
for example, includes the following metadata:
- Creation and modification date of the PDF
document.
- The application with which the PDF
document was
created.
- The PDF version.
- File size.
- The name and path of the PDF file.
- Number of pages.
- Page size.