Add a bookmark to PDFs in Node.js

async function main() {
  const doc = await PDFNet.PDFDoc.createFromURL(filename);
  const myitem = await PDFNet.Bookmark.create(doc, 'My Item');
  doc.addRootBookmark(myitem);
}
PDFNet.runWithCleanup(main);

Note that we obtain the root Bookmark using GetFirstBookmark(). If GetFirstBookmark() returns an invalid Bookmark (where GetFirstBookmark().IsValid() is false), the document has no outline tree.

Sub-items can be added using the Bookmark.AddChild() method:

async function main() {
  const sub_item = await myitem.addNewChild('My Sub-Item');
}
PDFNet.runWithCleanup(main);

Note that a Bookmark can be associated with different kinds of Actions. The most common action is to move to another location in the current document. This type of Action is called a Go-To action. The following sample creates a new page Destination and sets the Bookmark's action:

async function main() {
  myitem.setAction(await PDFNet.Action.createGoto(await PDFNet.Destination.createFit(await doc.getPage(1))));
}
PDFNet.runWithCleanup(main);

Using Apryse SDK, it is also possible to quickly create named destinations. Named destinations have an advantage over explicit destinations — they allow the location of the destination to change without invalidating existing links.

To create a named destination, pass the key (under which the destination will be stored) to the Action.Create() method:

async function main() {
  const key = 'blue1';
  myitem.setAction(await PDFNet.Action.createGotoWithKey(key, await PDFNet.Destination.createFit(await doc.getPage(1))));
}
PDFNet.runWithCleanup(main);