CODEWITHSUNDEEP
pdf-generationnode-moduleshtml2pdfhapipdftron
Nick Roper
Nick Roper

Reputation: 137

PDFTron html2pdf 0KB file size

I have the @pdftron node module installed in a test Node (Hapi) application on my Mac. I'm trying to generate a PDF file from a HTML string but the saved file is 0 KB. I've tried this two ways:

In both cases, any new PDFs that are saved have a size of 0KB and any existing PDFs that are supposed to be modified by the process remain unchanged.

I've checked that the html2pdf module library path is being set correctly.

The route handler code is as follows, which is in accordance with example code provided by PDFTRon.

server.route({
    method: 'GET',
    path: '/pdftron/html',
    handler: (request, h) => {

        const { PDFNet } = require('@pdftron/pdfnet-node/lib/pdfnet.js')

        const main = async () => {
            await PDFNet.initialize()
            await PDFNet.HTML2PDF.setModulePath('node_modules/@pdftron/pdfnet-node/lib')
            const output_path = '/tmp/'

            try {

                const html2pdf = await PDFNet.HTML2PDF.create();
                const doc = await PDFNet.PDFDoc.create();
                const html = '<html><body><h1>Heading</h1><p>Paragraph.</p></body></html>'
        
                html2pdf.insertFromHtmlString(html);
                await html2pdf.convert(doc);
                doc.save(output_path.concat('pdf2html.pdf'), PDFNet.SDFDoc.SaveOptions.e_linearized);

            } catch (err) {
                console.log(err)
            }

        }
    
        PDFNet.runWithCleanup(main, 0).then(function () { PDFNet.shutdown(); })
        return 'PDF2HTML Test'
    }
})

Any thoughts/suggestions would be much appreciated.

Upvotes: 1

Views: 409

Answers (1)

Nick Roper
Nick Roper

Reputation: 137

Update on this - I had feedback from PDFTron to say that there is currently an issue with the current stable release of the Mac OS build and that they are addressing it.

In the meantime, they pointed me to the nightly experimental builds here. I downloaded and installed a recent experimental build and the PDF files now save OK using that.

Upvotes: 1

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