Downloading multiple documents

Technical Support WebViewer
1

Hi there, I wanted to see if there was any way to easily download a group of different PDFs via the front end. We’re using an Angular app… so far I’ve had luck with using this code to generate a PDF download for the current document loaded:

const { docViewer, annotManager } = this.wvInstance;
const doc = docViewer.getDocument();
const xfdfString = await annotManager.exportAnnotations();

const options = {
xfdfString,
downloadType: ‘pdf’
};
const data = await doc.getFileData(options);
const arr = new Uint8Array(data);
const blob = new Blob([arr], { type: ‘application/pdf’ });

I’m starting to look into how this could be altered so that I can generate blobs for other PDFs that are not currently loaded in the instance. Any help would be much appreciated!

2

Hello ,

If you want to download a group of different PDFs, can you use window.fetch API to download the documents as blobs? If so, then I found this stack overflow post with some sample code: https://stackoverflow.com/questions/32545632/how-can-i-download-a-file-using-window-fetch

let me know if you have more questions.
Check your ticket status - https://support.pdftron.com/helpdesk/tickets/19037
​

Best Regards,
Oscar Zhang
Software Developer
PDFTron Systems, Inc.
www.pdftron.com

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