Access PDF.js Viewer functions / events

Question

I am looking into putting together a small site that reads a few PDF files and loads them in the PDF.js viewer. (I want to use the viewer specifically) I still want all of the viewer UI and functionality present, just adding a sidebar with a list of files to chose from.

Alas I have not been able to really understand the PDF.js code (or a lot of the Viewer.js code provided for that matter)

Currently I am looking for a way to pass the PDF.js viewer a new file to open. (Without reloading the page and using the url parameter)

With that said that is only the bare minimum functionality to continue with this project.

I am also looking for something that can resemble a function reference for any of the Viewer / PDF.js functions that can be used for interactions:

I/O of the files
moving through pages / headings
scaling the pdf
any event triggers

I haven't been able to find anything direct from Mozzila's Github Wiki. And the recent tutorials that I have been able to find don't make use of the Viewer at all.

Sounds like you missed github.com/mozilla/pdf.js/wiki/… and github.com/mozilla/pdf.js/wiki/… — async5
– async5, Commented Nov 19, 2013 at 12:59
As mentioned in the post though I would rather not do this via a the URL parameter and instead just pass it the new file in javascript directly. I am using the fully compiled site version as well, but still don't have any idea on how to access any of the JS functionality — BorisKourt
– BorisKourt, Commented Nov 19, 2013 at 14:37

Vishnudev Krishnadas · Accepted Answer · 2020-04-06 11:58:33Z

3

To open a file from a url:

PDFView.open(url, 0);

Set page:

PDFView.page = 2;

zoom/scale:

PDFView.zoomIn(10);
PDFView.zoomOut(10);

Basically just look at the PDFView object in viewer.js.

edited Apr 6, 2020 at 11:58

Vishnudev Krishnadas

11k2 gold badges29 silver badges58 bronze badges

answered Sep 12, 2014 at 2:36

psamwel

1,0629 silver badges15 bronze badges

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