Get Colors in PDF

Hi Cefeg,

you can analyze with QuickPDF how the color settings are set (the device tags with b/w, cmyk or rgb) or with GetPageColorSpaces:
https://www.debenu.com/docs/pdf_library_reference/GetPageColorSpaces.php
But you won't be able using QuickPDF to determine the real used colors in a pdf (the naked pages and embedded images). If you want this you should convert the pdf into an image and then trying the "bitmap" to get the color pixel by pixel.
 

Hi,

instead these tags regarding color types isn't a save methode to determine what's inside: Internally the pdf-structure offers the device-flags like
- for example - DeviceRGB, DeviceGray oder DeviceCMYK which
points to the used colours in the document. Better: It could
point 'cause it's not a must to use device-flags in the pdf-
document. It's possible to have coloured pages in a document
with DeviceGray and it's possible to have coloured and b/w-pages
in a document without any device-flag and it's possible to
have only b/w-pages in a document with DeviceCMYK and so on...
So the device-flags are only indicators for the used colour-
models in a document but not a save method to determine
coloured pages.