support for hyperlink?

[saif-ellafi]

Dear pdfrx creator! As always, amazing work.

I was wondering if a scrollTo approach to hyperlinks in PDF could be added?

Many digital version PDFs use them abundantly to jump around.

Would be nice!
Thanks

[espresso3389]

If the goal is to scroll to a specific link area in a PDF page, you can load the page links with PdfPage.loadLinks() and then convert the target link rectangle to the viewer's document coordinates.

For example, this scrolls the viewer to the first link on page 1:

final controller = PdfViewerController();
PdfDocument? document;

PdfViewer.asset(
  'assets/sample.pdf',
  controller: controller,
  params: PdfViewerParams(
    onViewerReady: (doc, controller) async {
      document = doc;
    },
  ),
);

Future<void> scrollToFirstLinkOnPage(int pageNumber) async {
  final doc = document;
  if (doc == null || !controller.isReady) return;

  final page = doc.pages[pageNumber - 1];
  final links = await page.loadLinks();
  if (links.isEmpty) return;

  final link = links.first;
  final linkRectInPage = link.rects.boundingRect();
  final linkRectInDocument = controller.calcRectForRectInsidePage(
    pageNumber: pageNumber,
    rect: linkRectInPage,
  );

  await controller.ensureVisible(
    linkRectInDocument,
    margin: 24,
  );
}

If you want to choose a specific link, filter links by link.url, link.dest, or by its index on the page. For a PDF internal destination, tapping/activating the link itself can still use controller.goToDest(link.dest), but scrolling to the visible link annotation area is done from link.rects as shown above.

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