The retrieved values of PDPageGetBBox are members of an ASFixedRect structure, which stores four ASFixed variables for use in defining rectangular areas: Left Top Right Bottom The variables are defined in the asexpt.h header file. These are ASFixed... Read More

PDDocInsertPages is a method that can be used to merge pages in multiple PDF documents into a single PDF. The process requires a number of steps and is memory intensive, but you can merge as many source PDF documents as your system memory will allow.... Read More

The PDPageGetSize() interface was created first to return PDF page size, returning it as a simple width and depth. These interfaces were added later to provide more precise definitions of the page added to the PDF document: PDPageGetMediaBox()... Read More

A PDF document may contain thumbnail images, but they are not required. Adobe Acrobat ignores any thumbnails it finds in a PDF, and automatically generates its own temporarily when they are needed for page viewing. It does not embed its own... Read More

Hyperlinks direct a reader to a different part of the same PDF document, or connect the reader to an external web page. In PDF a link is a type of annotation. So to compile a list of all of the links in a PDF document, you would list objects, Type â€... Read More

A PDF document may have a maximum size of 14,400 by 14,400 units in default user space, and a minimum of 3 x 3 units. At a default unit size of a point, or 1/72 of an inch, a PDF document may not be larger than 200 inches by 200 inches. See Annex C, ... Read More

Suppose you want to create only a cyan or magenta color separation from an image in a PDF document. PDPageMakeSeparations() will provide PostScript separations. Datalogics offers several sample programs that demonstrate working with color separations... Read More

The PDPrefSetWorkingRGB, PDPrefSetWorkingCMYK and PDPrefSetWorkingGray API settings tie the nominal DeviceRGB, DeviceCMYK and DeviceGray color gamut (respectively) to a specific ICC profile’s color gamut. Putting it another way, the designated... Read More

A single PDF document can support a wide variety of elements using different color models. Often a PDF file is produced and saved with elements in the DeviceRGB, DeviceCMYK and DeviceGray spaces that have an associated ICC profile. An element (such... Read More