Poppler Qt4 接口类库，libpoppler-qt4，一个类库能够让QT4应用程序轻松加载和展示PDF文件。    <pre class="brush:cpp; toolbar: true; auto-links: false;">// Paranoid safety check if (document == 0) {   // ... error message ...   return; }  // Access page of the PDF file Poppler::Page* pdfPage = document->page(pageNumber);  // Document starts at page 0 if (pdfPage == 0) {   // ... error message ...   return; }  // Generate a QImage of the rendered page QImage image = pdfPage->renderToImage(xres, yres, x, y, width, height); if (image.isNull()) {   // ... error message ...   return; }  // ... use image ...  // after the usage, the page must be deleted delete pdfPage;</pre>    <p><strong>项目主页：</strong><a href="http://www.open-open.com/lib/view/home/1326725498077" target="_blank">http://www.open-open.com/lib/view/home/1326725498077</a></p>