Convert XPS with Aspose.Page C++ API

This article explains how to convert XPS files using C++ on the example of XPS to PDF Conversion.

Aspose.Page lets you convert XPS files using C++ in high-quality BMP, JPG, TIFF, PNG, and PDF documents.

• C++ XPS to JPG
• C++ XPS to BMP
• C++ XPS to PNG
• C++ XPS to TIFF
• C++ XPS to PDF

You can check the quality of Aspose.Page XPS to PDF conversion and view the results via free online XPS to PDF Converter

Aspose.Page C++ XPS to PDF converter allows conversion of XPS documents to PDF on Windows and Linux.

It is necessary to do several steps to perform XPS to PDF conversion:

1. Initialize an output stream for output PDF document.
2. Initialize an input stream for the input XPS document.
3. Create an instance of XpsDocument from created earlier input stream.
4. Specify TextCompression, ImageCompression, JpegQualityLevel, and other options of PdfSaveOptions.
5. Create an instance of PdfDevice from created earlier output stream.
6. Save the XPS document as a PDF with PDF save options.

Еру аollowing code snippet shows how to convert XPS to PDF document in C++:

For complete examples and data files, please go to https://github.com/aspose-page/Aspose.Page-for-C

See XPS to PDF conversion in .Net and Java.

Let’s consider PdfSaveOptions. Using this class we can assign different conversion parameters while converting XPS to PDF.

• JpegQualityLevel controls the quality of images in PDF documents if the ImageCompression algorithm is JPEG and can be from 0 to 100.
• ImageCompression algorithm encapsulated in PdfImageCompression Enumeration, may be Run Length Encoding (RLE), Flate, Lempel-Ziv-Welch (LZW) with base or optimized predictor, JPEG, none (raw image bytes) and auto (the most appropriate compression for each image). The default is auto compression.
• TextCompression algorithm encapsulated in PdfTextCompression Enumeration, may be Run Length Encoding (RLE), Flate, Lempel-Ziv-Welch (LZW) and none. The default value in XPS to PDF conversion is Flate.
• EncryptionDetails encapsulated in PdfEncryptionDetails. It allows setting encryption algorithm, permissions, owner and user passwords for PDF document.
• PageNumbers represents an array of numbers of pages that will be saved to PDF.
• OutlineTreeExpansionLevel and OutlineTreeHeight controls view of document outline.

For converting XPS to an image format there are the following parameters here:

• SmoothingMode assigns a degree of smoothing for lines, curves, and edges of filled areas, which may be AntiAlias, HighQuality, HighSpeed, and Default (none). The default value is HighQuality.
• Resolution controls the resolution of the resulting image. The default value is 96.
• TextRenderingHint assigns quality of text rendering, may be AntiAlias, AntiAliasGridFit, ClearTypeGridFit, SingleBitPerPixel, SingleBitPerPixelGridFit, SystemDefault. The default value in XPS to PNG conversion is AntiAliasGridFit.
• InterpolationMode defines an algorithm that is used when scaling or/and rotating an image, may be Bicubic, Bilinear, High, HighQualityBicubic, HighQualityBilinear, Low, NearestNeighbor and Default. The default value is HighQualityBicubic.
• PageNumbers represents an array of numbers of pages that will be saved to PNG.

Check XPS conversion online on our XPS cross-platform Converter. You can convert several XPS files to PDF at once and download results in a few seconds.

You can download examples and data files from GitHub.