Convert XPS with Aspose.Page JavaScript via C++ API
This article explains how to convert XPS files using JavaScript on the example of XPS to PDF Conversion.
Aspose.Page lets you convert XPS files using JavaScript in high-quality BMP, JPG, TIFF, PNG, and PDF documents.
- JavaScript XPS to JPG
- JavaScript XPS to BMP
- JavaScript XPS to PNG
- JavaScript XPS to TIFF
- JavaScript 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 JavaScript via C++ XPS to PDF converter allows conversion of XPS documents to PDF on Windows and Linux.
It is necessary to take several steps to convert XPS to PDF:
- Create file reader ‘const file_reader = new FileReader();’ and read file ‘file_reader.readAsArrayBuffer(e.target.files[0]);’.
- On load event handler call AsposeXPSSaveAsPdf and pass the file content and its name, and SuppressError boolean values to it.
- The result JSON contains the file name in fileNameResult.
- If the SuppressErrors value was true, as it is by default, it is possible to see what errors were thrown during the conversion of XPS to PDF.
- You can download files by using the DownloadFile function: ‘DownloadFile(JSON.fileNameResult, “image/pdf”);’
The following code snippet shows how to convert XPS to PDF document in JavaScript:
For complete examples and data files, please go to https://github.com/aspose-page/Aspose.Page-for-JavaScript-C
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 the 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:
- 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/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 the results in a few seconds.
You can download examples and data files from GitHub.