This article applies to Windows 64, Linux x86_64 and MacARM versions of Datalogics Adobe PDF Library (APDFL) 21. Feature availability, component filenames, file sizes, and deployment requirements may differ on other platforms or in other APDFL... Read More
APDFL: Graphics Processing and Images
Overview Rendering a large PDF page at high resolution with Adobe PDF Library 18 can create a multi-gigabyte raster image. Users may experience long processing times, high memory consumption, application failures on memory-constrained systems, or... Read More
In Adobe C/C++, a PDEImage can be created using DLPDECreatePDEImageFromFile() and manipulated with DLPDEImageTranslate, DLPDEImageRotate and DLPDEImageScale. The new image element can be added to the Content stream with PDEContentAddElem(). See the... Read More
In Adobe C/C++, smoothing options can be set via global values with the function PDPrefSetAntialiasLevel or by setting flags on (some) rendering calls. PDPrefSetAntialiasLevel PDPrefSetAntialiasLevel() accepts the antialiasPixelLevel paramater which... Read More
PPI, or Pixels per Inch, measures the resolution of bitmap images. The image itself consists of a series of pixels which are “captured” at some given resolution. Technically, an image in a PDF does not have its own DPI value, though some tools,... Read More
An image XObject is a COS stream object. The stream dictionary holds entries that give the number of rows and the width of a row in pixels. Other entries describe the color model in use and the line and row progression. Image XObjects are described... Read More
Adobe Reader and Acrobat include plug-ins that allow users to include and display 3D image graphics within PDF documents for engineering and computer-aided manufacturing processes, by converting native CAD/CAM formats into file formats that Adobe... Read More