Javascript watermark which uses list of inputted names to batch watermark a file

Question

Hi there, and thanks in advance for any advice. I've written a simple script to ask the user for a name, watermark files with this input, and then save the file with the same input added to the filename. As part of my job, it would be even more useful if I could input a list of names and batch watermark them at the same time. My script so far is below. I have python and html/css experience, so I know vaguely how to do this: set the WaterName variable from the top of the list, run the watermark and saveAs commnads, then go back to line 2 of the list and repeat until there are no more names left. But I'm new to Javascript in Acrobat and would really appreciate any tips. Thanks,Ben // Ask user for Name

var dialogTitle = "Enter Name";
var WaterName = app.response("Watermark Text",
dialogTitle);

// Add watermark
event.target.addWatermarkFromText({
	cText: WaterName,
	nTextAlign:app.constants.align.center,
	cFont: "Arial",
	nScale: -1,
	nRotation: 45,
	nOpacity: 0.06
});

// Build File Name addition from Name
var cExt = (" - " + WaterName + ".pdf");

//Add the extension to the end of the file name 
var cDstName = event.target.documentFileName.replace(/\.pdf$/,cExt);

// Save the file
event.target.saveAs(cDstName);

Thom Parker · Accepted Answer

Thanks Thom. That makes total sense. I have rejigged as you describe, but unfortunately there's still something not right - I am sure I've made a stupid mistake. My code is below. As it is, it is saving copies like this:

- "File1 - First name.pdf" - with no watermark

- "File2 - Second name.pdf" - with a watermark of the first name (!!?)

So it appears there's something wrong with the opening and closing of the newly saved copies.

Thanks

// Prompt user for the list
var WaterNamePlu = app.response({ cQuestion: "Enter Watermark Text", cTitle: "Watermark text"});
//Parse list
var aNames = WaterNamePlu.split(",");

//Loop the list till complete
for(var i=0;i<aNames.length;i++)
{
    
    WaterName = aNames[i];
    
    // Build File Name addition from Name
    var cExt = (" - " + WaterName + ".pdf");
    //Add the extension to the end of the file name and create save path
    var cDstName = this.documentFileName.replace(/\.pdf$/,cExt);
    var cDstPath = "/Users/Ben/Desktop/" + cDstName; 
    // Save the renamed copy
    this.saveAs({cPath:cDstPath, bCopy:true});
    
    app.openDoc(cDstPath);
    
    event.target.addWatermarkFromText({
        cText: WaterName,
        nTextAlign:app.constants.align.center,
        cFont: "Arial",
        nScale: -1,
        nRotation: 45,
        nOpacity: 0.06
    });
    
    // Save and close the renamed copy
    app.execMenuItem("Save");
    this.closeDoc();
    
}

Very Very Close!

Both "event.target" and "this" always refers to the document being operated on by the batch process (i.e. Action), which is the original. The script needs to work on the document opened with "app.openDoc".

Also, it should be opening it as "hidden"

var oDoc = app.openDoc({cPath:cDstPath,bHidden:true});

oDoc.addWatermarkFormText(...);

oDoc.saveAs(cDstPath);

oDoc.closeDoc();

Thom Parker · Answer

You're script looks great. So is the list of names used to watermark the same file multiple times? Or is each name to be used on a different file?

Here's an article on string processing.

https://acrobatusers.com/tutorials/splitting-and-rebuilding-strings/

Let's say that the list of names is applied to the same file. And lets say the names are entered as a comma separated list.

Then you'd write a loop like this

var WaterNames = app.response("Watermark Text",
dialogTitle);
var aNames = WaterNames.split(",");
for(var i=0;i<aNames.length;i++)
{
    WaterName = aNames[i];
  ... Same code as before ...
}

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