No success displaying pdf's

1

My app is for my cnc machine guys who require looking up data from pdf charts. Current app is simple, (Form, HTMLview, and a jqwButton. It works fine during testing and successful deploy to VoltServer. When I get it to my device (iPhone SE) and Safari, my control shows blank. I’ve converted pdf to HTML with same result. Any guidance will be appreciated, driving me crazy …

2

First question: Have you tried using the Remote Debugging to see if there are error messages?

3

Thanks George
I converted my pdf charts to decent png’s, displaying in the PictureBox. Works fine.

4

We have the same issues with PDF files on iOS. We’ve found that if you convert the PDF file to base64 then it will work.

5

Thank you Pro_Certs for your reply. I’m quite the rookie at this, I’ve got the pdf converted to a base64 string, what’s next? Should I convert to a different format? Thanks again for your help.

6

There are two options on iOS native apps to open base64 files, with the “cordova-plugin-inappbrowser” plug-in or the “cordova-plugin-preview-any-file” plug-in.

If you don’t need to print or share the file then the “cordova-plugin-inappbrowser” is the simplest of methods.

Example:

//'Base64 PDF files
var pdf1 = "data:application/pdf;base64,put your base64 code here";
var pdf2 = "data:application/pdf;base64,JVBERi0xLSHBFgyghufguffggu";

Function pdf1_btn_onclick()
  cordova.inappbrowser.open(pdf1);
End Function

Function pdf2_btn_onclick()
  cordova.inappbrowser.open(pdf2);
End Function
7

Thanks Pro_Certs, I’ll give it a go.