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Convert documents to PDFkeyboard_arrow_down

Convert documents to PDF

In this document
chevron_rightConvert a non-PDF file
chevron_rightConvert other non-PDF files
chevron_rightConvert HTML to PDF
Saving annotations back to non-PDF formats is not supported. You can instead save the annotated PDFDoc to a PDF file.

PDFTron has a powerful conversion system which allows you to convert many file formats to PDF. The PTConvert class handles the conversion process and supports the following file types:

  • Office files: .docx, .pptx, .xlsx, .doc (with the office conversion Add-On module)
  • Images: .bmp, .jpg, .tif, .png, .gif
  • Image collections (zip archives with any type of image listed above)
  • Markdown files: .md

linkConvert a non-PDF file

The easiest way to convert a file is through the PTConvert class's +ToPDF:in_filename: method. The following code shows how to convert a non-PDF file using PDFTron's internal conversion:

The result of the conversion will be contained in the provided PTPDFDoc, which can then be displayed.

linkConvert other non-PDF files

In addition to the file types supported by PDFTron's internal conversion, it is also possible to convert many other file types with an iOS-specific API. The PTConvert class's +convertOfficeToPDF:paperSize:completion: method can convert any file type supported by WKWebView to PDF. Some of the supported file types include:

  • iWork files: .pages, .key, .numbers
  • Binary office files: .doc, .ppt, .xls
  • Rich Text Format files: .rtf

The following code shows how to convert a file with the iOS-specific API:

linkConvert HTML to PDF

The platform-specific conversion API also supports HTML to PDF conversion, either with the +convertOfficeToPDF:paperSize:completion: method for .html files or the +convertHTMLStringToPDF:baseURL:paperSize:completion: for raw HTML text.

The following code shows how to convert an HTML string to PDF:

where baseURL is the URL to use as the page's base URL for resolving relative links in the document.