Download PDF from binary string in Javascript

Question

Im trying to download a PDF file from binary string, which I receive as a response from an Ajax.

I receive the following data (binaryString):

%PDF-1.4....
.....
....content of file
....
%% EOF

I tried this:

    var blob=new Blob([binaryString], {type: "application/pdf"});// change resultByte to bytes
    var link=document.createElement('a');
    link.href=window.URL.createObjectURL(blob);
    link.download="myFileName.pdf";
    link.click();

And also tried using the download.js library:

download(binaryString, "file.pdf", "application/pdf");

However, both return a PDF with the correct number of pages, but completely blank.

Result of API test with insomnia:

Does this answer your question? How to build PDF file from binary string returned from a web-service using javascript — Cybernetic
– Cybernetic, Commented Feb 21, 2020 at 13:32
no, i had already seen it, i based it even, but it doesn't answer — Dr.G
– Dr.G, Commented Feb 21, 2020 at 13:35

Dr.G · Accepted Answer · 2020-02-21 14:00:59Z

2

The binary string arrives at the corrupted front, so I decided to convert it to base64 on the back end and send it like this, but that's because I have autonomy from the back end, I don't know how it would be resolved for a non-public api and other cases.

answered Feb 21, 2020 at 14:00

Dr.G

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