TypeError: wrong arguments, pass 1 argument which is a valid index in the array.

[sagar-gavhane]

First of all, I have filled the form then I need to remove editable fields or we can say lock form. When I'm doing this but it throws error TypeError: wrong arguments, pass 1 argument which is a valid index in the array.

const pdfWriter2 = hummus.createWriterToModify(source, {
  modifiedFilePath: target,
  log: __dirname + "/logs.txt",
});

lockForm(pdfWriter2)
pdfWriter2.end();

[chunyenHuang]

What's the lockForm?

[sagar-gavhane]

This is lock from. https://github.com/galkahana/HummusJSSamples/tree/master/lock-form