Failed to parse PDF document (line:24 col:934 offset=4584): No PDF header found

[AliYar-Khan]

What were you trying to do?

I am getting a pdf document in unit8array as follows

[
   37,  80, 68,  70,  45,  49,  46,  52,  10,  37, 211, 235,
  233, 225, 10,  49,  32,  48,  32, 111,  98, 106,  10,  60,
   60,  47, 84, 105, 116, 108, 101,  32,  40,  97,  98, 111,
  117, 116, 58,  98, 108,  97, 110, 107,  41,  10,  47,  67,
  114, 101, 97, 116, 111, 114,  32,  40,  77, 111, 122, 105,
  108, 108, 97,  47,  53,  46,  48,  32,  92,  40,  88,  49,
   49,  59, 32,  76, 105, 110, 117, 120,  32, 120,  56,  54,
   95,  54, 52,  92,  41,  32,  65, 112, 112, 108, 101,  87,
  101,  98, 75, 105,
  ... 6013 more items
]

I am converting it to String using this below code

 const str = unit8array
          .map((code) => String.fromCharCode(code))
          .join('');

It contains this data

%PDF-1.4
%Óëéá
1 0 obj
<</Title (about:blank)
/Creator (Mozilla/5.0 \(X11; Linux x86_64\) AppleWebKit/537.36 \(KHTML, like Gecko\) HeadlessChrome/131.0.0.0 Safari/537.36)
/Producer (Skia/PDF m131)
...
trailer
<</Size 25
/Root 14 0 R
/Info 1 0 R>>
startxref
5536
%%EOF

How did you attempt to do it?

I tried to load the str

const pdfDoc = await PDFDocument.load(str, {
          ignoreEncryption: true,
        });

What actually happened?

generate-pdf-appwrite\node_modules\pdf-lib\cjs\core\errors.js:229
        _this = _super.call(this, msg) || this;
                       ^

Error: Failed to parse PDF document (line:24 col:934 offset=4584): No PDF header found

What did you expect to happen?

It should load the string as pdf document

How can we reproduce the issue?

Get a pdf in unit8array
convert it to string
Load it
const pdfDoc = await PDFDocument.load(str, {
ignoreEncryption: true,
});

Version

1.17.1

What environment are you running pdf-lib in?

Node

Checklist

• My report includes a Short, Self Contained, Correct (Compilable) Example.
• I have attached all PDFs, images, and other files needed to run my SSCCE.

Additional Notes

No response