node.js How to use a url as pdf-path to work with pdf2json

Question

I'm using node.js and pdf2json parser to parse a pdf file. Currently it is working with a local pdf file. But I'm trying to get a pdf-file through the URL/HTTP Module of node.js and I want to open this file to parse it.

Is there any possibility to parse/work with an online pdf?

let query   = url.parse(req.url, true).query;
let pdfLink = query.pdf;
...
pdfParser.loadPDF(pdfLink + "");

So the url should be given through the url like: https://localhost:8080/?pdf=http://whale-cms.de/pdf.pdf

Is there any way to parse it within the online pdf/link?

Thanks in advance.

Because these pdfs on which were are working are updated every hour, so it would be much easier to do it over a url — Daniel Wahl, Jul 12 '17 at 11:23
Yes, just download it every time and work with it like a local file — LEQADA, Jul 12 '17 at 12:00
It has to run by itself, it is saved in a database automatically — Daniel Wahl, Jul 12 '17 at 12:55
Download it automatically. https://stackoverflow.com/questions/11944932/how-to-download-a-file-with-node-js-without-using-third-party-libraries — LEQADA, Jul 12 '17 at 13:33

peter · Answer 1 · 2018-01-03T16:54:53.280

3

Im just faced with the same problem, and found a solution:

        var request = require('request');
        var PDFParser = require("pdf2json");
        var pdfUrl = "http://localhost:3000/cdn/storage/PDFFiles/sk87bAfiXxPre428b/original/sk87bAfiXxPre428b"
        var pdfParser = new PDFParser();

        var pdfPipe = request({url: pdfUrl, encoding:null}).pipe(pdfParser);

        pdfPipe.on("pdfParser_dataError", err => console.error(err) );
        pdfPipe.on("pdfParser_dataReady", pdf => {
          let usedFieldsInTheDocument = pdfParser.getAllFieldsTypes();
            console.log(usedFieldsInTheDocument)
        });

Source from: https://github.com/modesty/pdf2json/issues/65
Cheers

edited Jan 03 '18 at 16:54

answered Jan 03 '18 at 15:25

peter

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Please post your answer here, not just a link. – Leopold Joy Jan 03 '18 at 15:45
How to wait until pdfipe.on finishes execution in an async function?? – Mayank Kumar Chaudhari Apr 29 '20 at 08:32
@mayank1513 you can use await – Mohammad Desouky Jan 25 '21 at 00:28

node.js How to use a url as pdf-path to work with pdf2json

1 Answers1