import pdfjs from "pdfjs-dist/legacy/build/pdf.mjs";
import Canvas from "canvas";

...code

const pdf = await pdfjs.getDocument(new Uint8Array(file_.file)).promise;
const page = await pdf.getPage(1);

const viewport = page.getViewport({
  scale: thumbnailWidth / page.getViewport({ scale: 1 }).width,
});

const canvas = Canvas.createCanvas(
  Math.floor(viewport.width),
  Math.floor(viewport.height)
).getContext("2d").canvas;
const context = canvas.getContext("2d") as any;

await page.render({
      canvasContext: context,
      viewport,
    }).promise;

...code

err: {
"type": "TypeError",
"message": "Image or Canvas expected",
"stack":
gestion-documentaire:dev:           TypeError: Image or Canvas expected
    at drawImageAtIntegerCoords (_project_location_/node_modules/pdfjs-dist/legacy/build/gestion-documentaire:dev: 
   at CanvasGraphics.paintInlineImageXObject (_project_location_/node_modules/pdfjs-distgestion-documentaire:dev: 4:5)
    at CanvasGraphics.paintImageXObject (_project_location_/node_modules/pdfjs-dist/legacgestion-documentaire:dev: 
  at CanvasGraphics.executeOperatorList (_project_location_/node_modules/pdfjs-dist/leggestion-documentaire:dev: )
  at InternalRenderTask._next (_project_location_/node_modules/pdfjs-dist/legacy/build/gestion-documentaire:dev: 
  at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
}

Type 'CanvasRenderingContext2D' don't have following properties of the 'CanvasRenderingContext2D' type: isPointInStroke, createConicGradient, filter, imageSmoothingQuality and 10 others.ts(2740)
api.d.ts(420, 5): The awaited type comes from the 'canvasContext' property, which is declared on the 'RenderParameters' type.