How to define the downloaded PDF Filename

[Stu-Hay]

Hi,

Apologies if this is a silly question, but I can't seem to find a way to control the filename of the generated PDF.

I have been able to set the Title Metadata...

pdfDoc.setTitle('Test', { showInWindowTitleBar: true })

but the downloaded file is still named Unknown.PDF.

Any help with this would be much appreciated.

Regards

Stu

[Stu-Hay]

My best guess would be I need to serialise the PDF via pdfDoc.save() and then write some additional code to take those bytes and write a file?

[bcholmes]

The way I do it, in-browser, uses an additional library called download.js -- this is based on example code from pdf-lib. Use that to "download" the pdf to the user's downloads directory. One of the parameters lets you set an name:

const pdfBytes = await pdfDoc.save();

// Trigger the browser to download the PDF document
download(pdfBytes, "my-file-name.pdf", "application/pdf");

That works well for me.

[Stu-Hay]

Thanks, I'll have a look at that.

[yaakovyitzchak]

Also just make a blob to download it, then set the name with the download attribute of an "a" node

var blob=new Blob([bytesFromDocSave])
var url=URL.createObjectURL(blob)
var a=document.createElement("a")
a.href=url
a.download="Fancy name of PDF.pdf"
a .click()

[dan-willett]

@bcholmes The link to download.js you included was the wrong library... I believe the link you were looking for is: https://github.com/rndme/download