Qt PDF 模塊包含用於渲染 PDF 文檔的類和函數。 QPdfDocument class loads a PDF document and renders pages from it according to the options provided by the QPdfDocumentRenderOptions 類。 QPdfPageRenderer class manages a queue that collects all render requests. The QPdfPageNavigator class handles the navigation through a PDF document. The QPdfSearchModel class searches for a string and holds the search results. The QPdfBookmarkModel class holds the table of contents, if present. The QPdfLinkModel holds information about hyperlinks on a page. The QPdfView widget is a complete PDF viewer, and the PDF 查看器 Widget 範例 shows how to use it.
For Qt Quick applications, three kinds of full-featured viewer components are provided. PdfMultiPageView should be your first choice for the most common user experience: flicking through the pages in the entire document. PdfScrollablePageView shows one page at a time, with scrolling; and PdfPageView shows one full page at a time, without scrolling.
The full-featured viewer components are composed of lower-level QML components that can be used separately if you need to write a more customized PDF viewing application: PdfDocument , PdfPageImage , PdfPageNavigator , PdfSelection , PdfSearchModel , PdfLinkModel ，和 PdfBookmarkModel .
If you only need to render page images, without features such as text selection, search and navigation, this module includes a QImageIOHandler plugin that treats PDF as a scalable image format , similar to SVG . You can simply use 圖像 , and set the currentFrame property to the page index that you wish to display. If the PDF file does not render its own background, the image has a transparent background.
使用 Qt 模塊要求直接或透過其它依賴鏈接到模塊庫。一些構建工具為此有貢獻支持，包括 CMake and qmake .
使用
find_package()
命令定位所需模塊組件在
Qt6
包：
find_package(Qt6 REQUIRED COMPONENTS Pdf) target_link_libraries(mytarget Qt6::Pdf)
另請參閱 構建采用 CMake 概述。
要鏈接到模塊，添加此行到 qmake 工程文件：
QT += pdf
Qt PDF 在商業許可下是可用的來自 Qt 公司 。此外，它是可用的根據 GNU LGPL (次一般公共許可) 第 3 版 ，或 GNU GPL (一般公共許可) 第 2 版 。見 Qt PDF 許可 進一步瞭解此模塊的有關細節。
