# Custom trigger to hyperlinks / link and goto that are already created in original PDF
**URL:** https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505
**Category:** Technical Support
**Created:** [February 17, 2021, 4:36am UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505 "2021-02-17T04:36:38Z")
**Posts on this page:** 13
**Page:** 1
### Author:  [@fbenavides](https://pdfjs.community/u/fbenavides)
#### Post date: [February 17, 2021, 4:36am UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/1 "2021-02-17T04:36:38Z")
**PDF.js Express Version**
**Detailed description of issue**
Hi, I am trying to display PDF documents that have external hyperlinks to files. First I need how to Active those links to work.
Second, I need somehow to catch the event when the user click the external hyperlink and try to redirect it to existing file in the server.
I try this link for PDFTRON but it don’t work.
[https://groups.google.com/g/pdfnet-webviewer/c/H0353b6vYwU](https://groups.google.com/g/pdfnet-webviewer/c/H0353b6vYwU)
**Expected behaviour**
{Provide a screenshot or description of the expected behaviour}
First, When the user click on the hyperlink, open a blank page with the link
**Does your issue happen with every document, or just one?**
{Answer here}
**Link to document**
{Provide a link to the document in question if possible}
**Code snippet**
{Provide a relevant code snippet}
---
### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [February 17, 2021, 5:27pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/2 "2021-02-17T17:27:44Z")
Hey there! Thanks for trying out PDF.js Express.
You’re super close. For external links, you’ll actually want to override the URI Action instead of GoToR.
```javascript
WebViewer(...).then(instance => {
const uriTrigger = Actions.URI.prototype.onTriggered;
Actions.URI.prototype.onTriggered = function(link) {
//uriTrigger.apply(this, arguments); // uncomment this to use default functionality
console.log(this.uri);
};
})
```
With the URI you can do whatever you wish.
Let me know if theres anything else I can help with.
Thanks!
Logan
---
### Author:  [@fbenavides](https://pdfjs.community/u/fbenavides)
#### Post date: [February 17, 2021, 11:00pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/3 "2021-02-17T23:00:29Z")
Hi Logan, thank you for your answer.
I managed to do trigger my custom event with the PdfTron demo. How ever , I didn´t have success with the PDF.js Express demo.
In Pdf.js Express the annotations are not returning actions.
This is my code
WebViewer({
path: ‘PDFJSExpress/lib’, // path to the PDF.js Express’lib’ folder on your server
licenseKey: ‘Insert commercial license key here after purchase’,
initialDoc: ‘WebViewer/samples/viewing/viewing/ejemplo3/test.pdf’,
```
}, document.getElementById('viewer'))
.then(instance => {
const docViewer = instance.docViewer;
const annotManager = instance.annotManager;
//PDFTron return actions but PDF.JSExpress don't
docViewer.on('annotationsLoaded', () => {
const annotations = annotManager.getAnnotationsList();
annotations.forEach(annot => {
var a = annot.getActions();
if (a.U) {
if (a.U.length>0) {
var act = a.U[0];
if (act.elementName == 'URI') {
var auri = act.fr;
act.onTriggered = function (dispacher, event, owner) {
//Do something
}
}
}
}
});
});
});
```
---
### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [February 22, 2021, 9:16pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/4 "2021-02-22T21:16:37Z")
Hi!
Please note that you cannot rely on the minified properties such as `a.U` and `act.fr`, as these may change between versions/builds.
Is the issue that `annot.getActions();` returns an empty array using Express?
---
### Author:  [@fbenavides](https://pdfjs.community/u/fbenavides)
#### Post date: [February 23, 2021, 9:10pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/5 "2021-02-23T21:10:18Z")
Thank you Logan, I will fix the code to not use the minifield properties.
Yes , in Express annot.getActions() returns an empty array
---
### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [March 1, 2021, 5:26pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/6 "2021-03-01T17:26:55Z")
Would you mind sharing the document you are having issues with?
Thanks!
---
### Author:  [@fbenavides](https://pdfjs.community/u/fbenavides)
#### Post date: [March 1, 2021, 9:51pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/7 "2021-03-01T21:51:14Z")
of course!
[test.pdf](https://pdfjs.community/uploads/short-url/saASr3TCWd4dSPFQ1L30kvavKrw.pdf) (33.6 KB)
---
### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [March 2, 2021, 4:53pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/8 "2021-03-02T16:53:54Z")
Thanks @fbenavides !
I can reproduce your issue and will look for a fix today.
---
### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [March 2, 2021, 5:03pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/9 "2021-03-02T17:03:47Z")
Hey again,
I found a fix and it will be fixed in the next patch, which I’ll push out either today or tomorrow. I’ll announce it in #announcements so keep an eye out!
Thank you for your patience with this one.
Logan
---
### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [March 2, 2021, 5:07pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/10 "2021-03-02T17:07:03Z")
---
### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [March 3, 2021, 6:20pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/11 "2021-03-03T18:20:21Z")
---
### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [March 3, 2021, 6:20pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/12 "2021-03-03T18:20:30Z")
Hey!
This was fixed in 7.3.1
> [@Patch 7.3.1 - Regression Fixes](https://pdfjs.community/t/patch-7-3-1-regression-fixes/559):
>
> Hey guys! As promised, 7.3.1 has been released that fixes a couple issues with the 7.3 release. View the changelog [here](https://pdfjs.express/documentation/changelog/). Thanks! Loga
---
### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [March 3, 2021, 6:20pm UTC](https://pdfjs.community/t/custom-trigger-to-hyperlinks-link-and-goto-that-are-already-created-in-original-pdf/505/13 "2021-03-03T18:20:33Z")