OCR and Pdf plugin

[Soni Kumari]

Why OCR Scanner and Pdf plugin not working 

OCR Scanner fully not working 

And pdf viewer plugin not working or loading documents only show blank white page

[Jumar]

For PDF Plugin

Can you paste some code for us to check?

[Soni Kumari]

This is the sample buddy!

// Load the PDFViewer plugin at the top of your script

app.LoadPlugin( "PDFViewer" )

function OnStart() {

    // create an instance of the PDFViewer component

    pdf = app.CreatePDFViewer()

    // create a fullscreen layout with object vertically centered

    lay = app.CreateLayout("Linear", "VCenter,FillXY")

    // add a pdf viewer control into the layout

    myPdf = pdf.AddView(lay, "mypdf.pdf", 0.8, 0.5)

    // add a button into the layout to zoom in the pdf view when click

    btn = app.AddButton(lay, "Zoom")

    btn.SetOnTouch(function() {

        myPdf.SetZoom( 1.5 )

    })

    // add the layout to the app

    app.AddLayout( lay )

}
Please help me out

[Jumar]

Do you have a copy of the "mypdf.pdf" file? You can add your own pdf file in the app you have created.

[Soni Kumari]

yes buddy I have in my storage of "mypdf.pdf"

[Jumar]

Here's a sample SPK. Install the PDFViewer plugin from DS Plugins Store and run the SPK below.

[Soni Kumari]

My brother thank you so much!

It worked 😄!

But I want show pdf file when users select files from storage

[Alan Hendry]

HI,

Have you looked at the Samples for CheckPermission and GetPermission

(for the user to choose a folder) and ChooseFile?

Regards, ah

[Jumar]

I just updated the PDFViewer plugin. Now it supports a fileUri and base64 data. You can also save pages as an image.

Try this:

app.LoadPlugin("PDFViewer")

function OnStart() {
   

    pdf = app.CreatePDFViewer()  

   
    lay = app.CreateLayout("Linear", "VCenter,FillXY")
   

    app.AddLayout( lay )
   
    SelectPDF()    
}

function SelectPDF()
{
    fldr = "/Internal/Documents/"
    perm = "internal"
   
    if( !app.CheckPermission( fldr ) )
    {
        app.GetPermission(perm, OnPermission)
        return
    }
   
     app.ChooseFile("Choose file", "application/pdf", fileUri => {
         myPdf = pdf.AddView(lay, fileUri, 1, 0.4, "page")
         myPdf.SetOnLoad( OnLoad )
     })
}

function OnLoad( info ) {
    btn = app.AddButton(lay, "Save pages")
    btn.SetOnTouch(function() {
        myPdf.SetZoom(2)
        myPdf.Save("*", "my-files.png", (filePath, page, totalPages) => {
            console.log(filePath+" has been saved!")
            console.log("Page "+page+" of "+totalPages)
        })
    })
}

function OnPermission(path, uri)
{
    if( !path )
        app.ShowPopup( "Permission not granted!" )
    else
        SelectPDF()
}

[Alan Hendry]

HI,

DS 2.77.3 Android 14

OCR plugin (example in docs) gives message 

Cannot read properties of null - reading SetOnResult

(I need to rebuild an app that previously worked, for Play Store api rqmts)

Regards, ah