GL Projects
A quick visual check shows a fairly clean document – a title page, a table of contents, and then a series of “chapter‑style” pages full of lorem‑ipsum text. Nothing suspicious at first glance. PDFs are made of a series of objects (streams, dictionaries, etc.). Hidden data is often stored in unused objects, extra streams, or in the metadata section.
To be thorough, we also checked whether any other objects contained additional base‑64 or XOR‑encoded data, but none yielded a flag.
$ pdf-parser -dump 18pages.pdf > pdf_objects.txt The dump revealed the following interesting points: