[Ticket cloned from T12849: SurveyJS PDF Creator questions - Render Text and Images in the Header and Footer section]
Thank you so much for the detailed explanation and examples.
I tested it and this works great using the "save" method, but when I try the "raw" method, the background image doesn't draw.
Hello Prashant,
The surveyPDF.save function returns a Promise. When a function returns a Promise, it means that the function is asynchronous and will not immediately return a value, but will instead return a Promise object that represents a future value. To correctly save a PDF document raw content in this case, you need to use the then() method of the Promise object to register a callback function that will be called when the Promise is resolved. Please update your code as follows to resolve the issue:
JavaScriptsurveyPDFModel.save(filename).then(() => {
surveyPDFModel.raw("bloburl").then(function(bloburl) {
const a = document.createElement("a");
a.href = bloburl;
a.download = "surveyViaBlob.pdf";
document.body.appendChild(a);
a.click();
});
})
The updated example is available at https://plnkr.co/edit/a4dzWSdzy7BDOkCn?preview.
Let me know if you have any questions or require further assistance.
Thanks
Hello Prashant,
I tested my demo and noticed that the text appears above the image when exporting a survey to raw PDF (example).
We will research this issue and post updates in the following GitHub thread: https://github.com/surveyjs/survey-pdf/issues/233.
If you face another issue with exporting custom header content to raw PDF, please feel free to update this thread with a sample.
Thank you
Please look forward to our updates.