Pdf.js: Viewport does contain width or height

[johnsonsw100]

I wrote #10797 but you closed it before I had time to respond. Here's my latest on this.

After upgrading to pdfjs-2.0.943-dist things still failed and I figured it was the same issues I was having with pdfjs-1.9.426-dist. Turns out it's not.

In pdfjs-2.0.943-dist, this code:

pdf.getPage(1).then(function(page) {
var viewport = page.getViewport({ scale: 1, });
});

returns this viewport:

1. height: NaN
2. offsetX: 0
3. offsetY: 0
4. rotation: 0
5. scale: {scale: 1}
6. transform: (6) [NaN, NaN, NaN, NaN, NaN, NaN]
7. viewBox: (4) [0, 0, 595.273, 841.886]
8. width: NaN

I need the width and height so my code fails. I ran the above in a Chrome browser.

I then tried pdfjs-dist-master and things work fine in all platforms. I get this viewport:

1. height: 841.886
2. offsetX: 0
3. offsetY: 0
4. rotation: 0
5. scale: 1
6. transform: (6) [1, 0, 0, -1, 0, 841.886]
7. viewBox: (4) [0, 0, 595.273, 841.886]
8. width: 595.273

pdfjs-dist-master partially solves my problem (I get the complete viewport and it works for me in all platforms) but it doesn't contain viewer.html so I rely on pdfjs-2.0.943-dist for the viewer. Between the two I get everything I need but I'd prefer to use one package for both pdf access and viewing.

If possible, please tell me:

1. how I can get pdfjs-2.0.943-dist to return a complete viewport.
   or
2. how I can use viewer.html with pdfjs-dist-master.

Thank you

[Snuffleupagus]

The method signature changed in PR #10369, hence:

• In version 2.0.943 and earlier it takes "regular" parameters, i.e. formatted as getViewport(scale, rotate, dontFlip).
• In version 2.1.266 and later it takes an object, i.e. formatted as getViewport({ scale, rotation, dontFlip })

(This change should probably have been done a lot earlier, but it was overlooked previously.)