Cannot add image to pdf using streams

[jchapelle]

Hello, I'm trying to add an image (from drawImage or doXObject) using streams but it does not seem to work. No error are throw but image is not added to pdf. Coud you help ?

let newBuffer ;
const outStream = new memoryStreams.WritableStream();

try {
   // @ts-ignore
   const firstPDFStream = new hummus.PDFRStreamForFile("./test.pdf");
   // @ts-ignore
   const pdfWriter = hummus.createWriterToModify(firstPDFStream, new 
   hummus.PDFStreamForResponse(outStream));
   const imageXObject = pdfWriter.createFormXObjectFromPNG("./test.png");
   const pageModifier = new hummus.PDFPageModifier(pdfWriter, 0);
   const ctx = pageModifier.startContext().getContext();

   //Try to add image
   ctx.drawImage(0,10, "test.png");

   //Try to add text
   pageModifier.startContext().getContext().writeText(
      'Test Text',
      75, 805,
       { size: 14, colorspace: 'gray', color: 0x00 }
   );

   //Try to add image
   ctx.q().cm(0, 10, 0, 100, 0, 10).doXObject(imageXObject).Q();

   pageModifier.endContext().writePage();
   pdfWriter.end();
   newBuffer = outStream.toBuffer();
   outStream.end();

}
catch (e) {
   console.log("error");
   console.log(e);
   outStream.end();
   throw new Error("Error during PDF combination: " + e.message);
}