Your EXE file doesn't contain a PDF, it contains a standalone flash player. I could tell this by making an educated guess after opening it up a resource viewer and could see references to flash/flash player:
The pages are individual SWF (flash) resource files. To extract them, you can use this tool:
http://swftools.sourceforge.net/exe-to-swf.html
That will give you an individual flash file for each page, plus a few more for the controls/prompts within the embedded flash player, which can be deleted. I was able to do this pretty quickly with your executable:
You'll then have to convert the first frame from each SWF file to an image (like a jpg or png) at a given resolution, order them correctly by page number then compile them into a PDF.
The only batch SWF to image software I could find is payware here:
http://www.verypdf.com/flash-to-image/swf-to-jpg-converter.html
Once you have individual page images, you're home free and can use software or an online service to compile them all together in a PDF. An example is here:
http://www.convert-jpg-to-pdf.net/
I would recommend doing all of this in a virtual machine: VirusTotal came back with a few hits on this file.
I also wouldn't recommend doing it at all if this book is under any copyright. I would recommend checking your local laws to make sure duplicating it isn't illegal in any way. I'm not responsible for misuse of these instructions.
2It is entirely possible that whatever file you have has the data stored in some proprietary format specific to the people who made it. How exactly do you know that there is a PDF involved? – Mokubai – 2016-10-06T06:24:11.733
1PeaZip, WinRar are other possible extracting applications. What would help is the maker of the exe name. – Darius – 2016-10-06T06:30:19.983
it is a book and you can search through it – pekka – 2016-10-06T06:30:33.580
3That doesn't make it a PDF though. – Daniel B – 2016-10-06T06:33:53.613
Thanks Darius but it didn't work – pekka – 2016-10-06T06:40:00.397
How do you know it's a PDF? Does the "PDF" load in the application, or load in a seperate PDF viewer? – Dave – 2016-10-06T10:56:33.957
it loads in the application – pekka – 2016-10-06T11:39:52.663
Without knowing what created this exe, or where you got it from or even just see a screenshot of this application it is impossible to say how to extract data from it. It might be a PDF file, but it could just as easily be any number of other PDF-like formats or some other format. Executables can be simple compressed archives that extract and run an executable all the way up to self-contained encrypted containers and viewers that leave nothing behind. – Mokubai – 2016-10-06T12:27:45.023
I just provided the screenshots, thanks for your help – pekka – 2016-10-06T12:30:55.087
I just provided the EXE book – pekka – 2016-10-06T13:29:58.727
Where did you get this book from? – thilina R – 2016-10-06T17:51:19.133