My situation is this: I've purchased some PDF maps that I converted some time ago into some software (MudMap) and I now no longer have the PDFs and I want to convert them back.
My problem is this: From the software, I've got the data file which is about 23MB and the xml file which describes tile information etc. I don't care about the metadata as I just want the map image so my question is with the data file only. As I said, it's 23MB. If I rename it to image extensions, it opens with image viewers but it is only 256x256px and only shows a section of the map - a section that looks like it would only 256px of the whole image. Opening the image in a text editor shows some repeating text elements with "IHDR" so I guess the file is related to a PNG format...??
So my question is: Simply, how can I view the full image. Does the PNG format (or others) have a capability to store additional image information hidden out of view? Or does the file itself set the boundaries of it's viewable area. Finally, is there software out there that reads these files?