Dynamic XFA PDF forms contain backup placeholder content in addition to the XFA data describing the fields and content of the form. The placeholder content can vary but is typically a warning to upgrade or use Adobe Reader. When a dynamic XFA PDF... Read More
APDFL: Rendering Functions
When rendering via the PDPageDrawContentsToMemory* APIs, specify 1 BPC (Bits per Component) instead of 8 BPC when using DeviceGray as the csAtom. A component here refers to a color channel; Gray has one, RGB has three (red, green, blue), and CMYK has... Read More
The core Adobe PDF Library C++ interface can be used to rasterize a PDF page to a memory buffer via the PDPageDrawContentsToMemory*() APIs. The user application can then convert that to a PDEImage and export to the desired image format (TIF, JPG, etc... Read More
The Details When working with document rendering, particularly in C applications using a specific PDF rendering library, users may encounter unexpected behavior when utilizing various flags, including kPDPageIsPrinting. In this case, the user... Read More
If the input document was originally rendered with no smoothing or antialiasing of any kind, you are essentially starting with a lot of glyphs that all have extremely rough edges, being rendered with nothing but black or white squares. If this is... Read More
Add the member flattenNoLimit to the PDPageDrawParams structure. This will help if lines are missing from your output file. When this value is set to True, Adobe PDF Library will ignore some limits on the Flattener to ensure the user gets the best... Read More
Adobe PDF Library does not offer a single interface that will allow control of both Optional Content and Annotations at the same time for a PDF document. PDPageDrawContentsToMemory() allows selection of Annotation faces, but does not have control for... Read More
APDFL lets the client define the output color spaces. The APIs in Adobe PDF Library that set the default output color spaces are: PDPrefSetWorkingRGB PDPrefSetWorkingCMYK PDPrefSetWorkingGray These allow the client application to pass in an ICC... Read More
When using a function or object to print PDF files, you might sometimes see the print job fail, where some or all of the fonts are missing. If you embed all of the fonts in a PDF document, it can be sent to any printer, on any system. The speed of... Read More
You can draw objects from a PDF document to a window in a specific order. You could draw out of the text stream first, then a graphic, and then a vector image. For example, you might want to render the text objects in a PDF document, and leave out... Read More