fix all upgrade issues, remove svg support

Whether I will add svg again will be seen in the future. Then you would have to implement your own implementation in any case, as the support from pdfjs has been cancelled. mozilla/pdf.js#16699

package.json

@@ -32,7 +32,7 @@
     "image"
   ],
   "dependencies": {
-    "pdfjs-dist": "3.11.174"
+    "pdfjs-dist": "4.0.379"
   },
   "devDependencies": {
     "@types/jest": "^29.5.12",

src/canvasfactory.ts

@@ -4,7 +4,7 @@ export interface CanvasApi {
 	 * 
 	 * @returns canvas 2d context
 	 */
-	createContext(): object;
+	createContext(): CanvasRenderingContext2D;
 	/**
 	 * resets the canvas to the give size
 	 * 
@@ -44,7 +44,7 @@ export class CanvasFactory {
 	 */
 	public reset(canvasAndContext: {
 		canvas: CanvasApi | null,
-		context: object | null
+		context: CanvasRenderingContext2D | null
 	}, width: number, height: number): void {
 		if (!canvasAndContext.canvas) throw new Error('Canvas is not specified');
 		if (width <= 0 || height <= 0) throw new Error('Invalid canvas size');
@@ -55,7 +55,7 @@ export class CanvasFactory {
 	 */
 	public destroy(canvasAndContext: {
 		canvas: CanvasApi | null,
-		context: object | null
+		context: CanvasRenderingContext2D | null
 	}): void {
 		if (!canvasAndContext.canvas) throw new Error('Canvas is not specified');
 		canvasAndContext.canvas.destroy();

src/contentinfoextractor.ts

@@ -1,4 +1,4 @@
-import { OPS } from 'pdfjs-dist/legacy/build/pdf';
+import { OPS } from 'pdfjs-dist/legacy/build/pdf.mjs';
 import { PDFOperatorList, PDFPageProxy } from 'pdfjs-dist/types/src/display/api';
 
 interface Glyph {
@@ -826,10 +826,6 @@ export class ContentInfoExtractor {
 	}
 	private endAnnotation() {
 	}
-	private beginAnnotation() {
-	}
-	private endAnnotation() {
-	}
 	private paintJpegXObject() {
 		// not used
 	}

src/nodecanvas.ts

@@ -32,8 +32,8 @@ export class NodeCanvas implements CanvasApi {
 	/**
 	 * @internal
 	 */
-	public createContext(): object {
-		return this.canvas.getContext('2d');
+	public createContext(): CanvasRenderingContext2D {
+		return this.canvas.getContext('2d') as any as CanvasRenderingContext2D;
 	}
 	/**
 	 * @internal

src/pdfdataextractor.ts

@@ -1,4 +1,4 @@
-import { getDocument, PermissionFlag } from 'pdfjs-dist/legacy/build/pdf';
+import { getDocument, PermissionFlag } from 'pdfjs-dist/legacy/build/pdf.mjs';
 import { PDFDocumentProxy, PDFPageProxy } from 'pdfjs-dist/types/src/display/api';
 import { CanvasFactory } from './canvasfactory';
 import { OcrFactory } from './ocrfactory';

src/pdfpagedata.ts

@@ -3,7 +3,6 @@ import { OCRLang, Sort } from './types';
 import { PageViewport } from 'pdfjs-dist/types/src/display/display_utils';
 import { CanvasApi, CanvasFactory } from './canvasfactory';
 import { ContentInfo, ContentInfoExtractor } from './contentinfoextractor';
-import { SVGGraphics } from 'pdfjs-dist/types/src/pdf';
 import { OcrApi, OcrFactory } from './ocrfactory';
 
 interface SVGElementSerializer {
@@ -149,7 +148,6 @@ export class PdfPageData {
 		await this.page.render({
 			canvasContext: canvas.createContext(),
 			viewport: viewport,
-			canvasFactory: new CanvasFactory()
 		}).promise;
 		return canvas.toJPEG(quality);
 	}
@@ -166,33 +164,7 @@ export class PdfPageData {
 		await this.page.render({
 			canvasContext: canvas.createContext(),
 			viewport: viewport,
-			canvasFactory: new CanvasFactory()
 		}).promise;
 		return canvas.toPNG();
 	}
-
-	/**
-	 * converts to a svg image
-	 * 
-	 * @returns {Promise<string>} the svg image as a {string}
-	 */
-	public async toSVG(): Promise<string> {
-		let result = '';
-		const viewport: PageViewport = this.page.getViewport({ scale: 1.0 });
-		const opList = await this.page.getOperatorList();
-		const svgGfx = new SVGGraphics(
-			this.page.commonObjs,
-			this.page.objs,
-			true
-		);
-		svgGfx.embedFonts = true;
-		const svg: SVGElement = await svgGfx.getSVG(opList, viewport);
-		const serializer = svg.getSerializer();
-		let chunk = serializer.getNext();
-		while (chunk != null) {
-			result += chunk;
-			chunk = serializer.getNext();
-		}
-		return result;
-	}
 }

src/pureimagecanvas.ts

@@ -15,7 +15,7 @@ export class PureimageCanvas implements CanvasApi {
 	 * @internal
 	 */
 	public constructor(width: number, height: number) {
-		this.bitmap = make(width, height, null);
+		this.bitmap = make(width, height);
 	}
 	/**
 	 * @internal
@@ -40,7 +40,7 @@ export class PureimageCanvas implements CanvasApi {
 	/**
 	 * @internal
 	 */
-	public createContext(): object {
+	public createContext(): CanvasRenderingContext2D {
 		return this.bitmap.getContext('2d');
 	}
 	/**

src/types.ts

@@ -1,4 +1,4 @@
-import { VerbosityLevel as RawVerbosityLevel } from 'pdfjs-dist/legacy/build/pdf';
+import { VerbosityLevel as RawVerbosityLevel } from 'pdfjs-dist/legacy/build/pdf.mjs';
 
 export enum VerbosityLevel {
 	/**