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385x 385x 385x 673x 673x 353x 353x 52x 52x 353x 353x 673x 385x 6x 34x 1x | import type { PageViewport, PDFDocumentProxy, PDFPageProxy } from 'pdfjs-dist/legacy/build/pdf.mjs';
import * as pdfjs from 'pdfjs-dist/legacy/build/pdf.mjs';
import type { DocumentInitParameters } from 'pdfjs-dist/types/src/display/api.js';
import type { BaseCanvasFactory } from 'pdfjs-dist/types/src/display/canvas_factory.js';
import type { PDFObjects } from 'pdfjs-dist/types/src/display/pdf_objects.js';
import { Line, LineStore, Point, Rectangle } from './geometry/Geometry.js';
import type { TableData } from './geometry/TableData.js';
import { ImageResult, type PageImages } from './ImageResult.js';
import { InfoResult, type PageLinkResult } from './InfoResult.js';
import type { ParseParameters } from './ParseParameters.js';
import { type MinMax, PathGeometry } from './PathGeometry.js';
import { ScreenshotResult } from './ScreenshotResult.js';
import { type PageTableResult, TableResult } from './TableResult.js';
import { type HyperlinkPosition, TextResult } from './TextResult.js';
export class PDFParse {
private readonly options: DocumentInitParameters;
private doc: PDFDocumentProxy | undefined;
public progress: { loaded: number; total: number } = { loaded: -1, total: 0 };
constructor(options: DocumentInitParameters) {
if (options.verbosity === undefined) {
options.verbosity = pdfjs.VerbosityLevel.ERRORS;
}
if (typeof Buffer !== 'undefined' && options.data instanceof Buffer) {
options.data = new Uint8Array(options.data);
}
this.options = options;
}
public async destroy() {
if (this.doc) {
await this.doc.destroy();
this.doc = undefined;
}
}
public static get isNodeJS(): boolean {
const isNodeJS =
typeof process === 'object' &&
`${process}` === '[object process]' &&
!process.versions.nw &&
// biome-ignore lint/suspicious/noExplicitAny: <unsupported underline type>
!(process.versions.electron && typeof (process as any).type !== 'undefined' && (process as any).type !== 'browser');
return isNodeJS;
}
public static setWorker(workerSrc?: string): string {
// biome-ignore lint/suspicious/noExplicitAny: <unsupported underline type>
if (typeof (globalThis as any).pdfjs === 'undefined') {
// biome-ignore lint/suspicious/noExplicitAny: <unsupported underline type>
(globalThis as any).pdfjs = pdfjs;
}
if (pdfjs?.GlobalWorkerOptions === null) return '';
if (workerSrc !== undefined) {
pdfjs.GlobalWorkerOptions.workerSrc = workerSrc;
return pdfjs.GlobalWorkerOptions.workerSrc;
}
if (!PDFParse.isNodeJS) {
pdfjs.GlobalWorkerOptions.workerSrc = 'https://cdn.jsdelivr.net/npm/pdf-parse@latest/dist/browser/pdf.worker.min.mjs';
return pdfjs.GlobalWorkerOptions.workerSrc;
}
return pdfjs.GlobalWorkerOptions.workerSrc;
}
public async getInfo(params: ParseParameters = {}): Promise<InfoResult> {
const doc = await this.load();
const result = new InfoResult(doc.numPages);
const { info, metadata } = await doc.getMetadata();
result.info = info;
result.metadata = metadata;
result.fingerprints = doc.fingerprints;
result.outline = await doc.getOutline();
result.permission = await doc.getPermissions();
const pageLabels = await doc.getPageLabels();
if (params.parseHyperlinks) {
for (let i: number = 1; i <= result.total; i++) {
if (this.shouldParse(i, result.total, params)) {
const page = await doc.getPage(i);
const pageLinkResult = await this.getPageLinks(page);
pageLinkResult.pageLabel = pageLabels?.[page.pageNumber];
result.pages.push(pageLinkResult);
page.cleanup();
}
}
}
return result;
}
private async getPageLinks(page: PDFPageProxy): Promise<PageLinkResult> {
const viewport = page.getViewport({ scale: 1 });
const result: PageLinkResult = {
pageNumber: page.pageNumber,
links: [],
width: viewport.width,
height: viewport.height,
};
// biome-ignore lint/suspicious/noExplicitAny: <unsupported underline type>
const annotations: Array<any> = (await page.getAnnotations({ intent: 'display' })) || [];
for (const i of annotations) {
if (i.subtype !== 'Link') continue;
const url: string = i.url ?? i.unsafeUrl;
if (!url) continue;
const text: string = i.overlaidText || '';
result.links.push({ url, text });
}
return result;
}
public async getText(params: ParseParameters = {}): Promise<TextResult> {
const doc = await this.load();
const result = new TextResult(doc.numPages);
for (let i: number = 1; i <= result.total; i++) {
if (this.shouldParse(i, result.total, params)) {
const page = await doc.getPage(i);
const text = await this.getPageText(page, params, result.total);
result.pages.push({
text: text,
num: i,
});
page.cleanup();
}
}
for (const page of result.pages) {
result.text += `${page.text}\n\n`;
}
return result;
}
private async load(): Promise<PDFDocumentProxy> {
if (this.doc === undefined) {
const loadingTask = pdfjs.getDocument(this.options);
loadingTask.onProgress = (progress: { loaded: number; total: number }) => {
this.progress = progress;
};
this.doc = await loadingTask.promise;
}
return this.doc;
}
private shouldParse(currentPage: number, totalPage: number, params: ParseParameters): boolean {
params.partial = params?.partial ?? [];
params.first = params?.first ?? 0;
params.last = params?.last ?? 0;
// parse specific pages
if (params.partial.length > 0) {
if (params.partial.includes(currentPage)) {
return true;
}
return false;
}
// parse pagest beetween first..last
if (params.first > 0 && params.last > 0) {
if (currentPage >= params.first && currentPage <= params.last) {
return true;
}
return false;
}
// parse first x page
if (params.first > 0) {
if (currentPage <= params.first) {
return true;
}
return false;
}
// parse last x page
if (params.last > 0) {
if (currentPage > totalPage - params.last) {
return true;
}
return false;
}
return true;
}
private async getPageText(page: PDFPageProxy, params: ParseParameters, total: number): Promise<string> {
const viewport = page.getViewport({ scale: 1 });
params.lineThreshold = params?.lineThreshold ?? 4.6;
params.cellThreshold = params?.cellThreshold ?? 7;
params.cellSeparator = params?.cellSeparator ?? '\t';
params.lineEnforce = params?.lineEnforce ?? true;
params.pageJoiner = params?.pageJoiner ?? '\n-- page_number of total_number --';
const textContent = await page.getTextContent({
includeMarkedContent: !!params.includeMarkedContent,
disableNormalization: !!params.disableNormalization,
});
let links: Map<string, HyperlinkPosition[]> = new Map();
if (params.parseHyperlinks) {
links = await this.getHyperlinks(page, viewport);
}
const strBuf: Array<string> = [];
let lastX: number | undefined;
let lastY: number | undefined;
for (const item of textContent.items) {
if (!('str' in item)) continue;
const tm = item.transform ?? item.transform;
const [x, y] = viewport.convertToViewportPoint(tm[4], tm[5]);
if (params.parseHyperlinks) {
const posArr = links.get(item.str) || [];
const hit = posArr.find((l) => x >= l.rect.left && x <= l.rect.right && y >= l.rect.top && y <= l.rect.bottom);
if (hit) {
item.str = `[${item.str}](${hit.url})`;
}
}
if (params.lineEnforce) {
if (lastY !== undefined && Math.abs(lastY - y) > params.lineThreshold) {
const lastItem = strBuf.length ? strBuf[strBuf.length - 1] : undefined;
const isCurrentItemHasNewLine = item.str.startsWith('\n') || (item.str.trim() === '' && item.hasEOL);
if (lastItem?.endsWith('\n') === false && !isCurrentItemHasNewLine) {
strBuf.push('\n');
}
}
}
if (params.cellSeparator) {
if (lastY !== undefined && Math.abs(lastY - y) < params.lineThreshold) {
if (lastX !== undefined && Math.abs(lastX - x) > params.cellThreshold) {
item.str = `${params.cellSeparator}${item.str}`;
}
}
}
strBuf.push(item.str);
lastX = x + item.width;
lastY = y;
if (item.hasEOL) {
strBuf.push('\n');
}
}
if (params.pageJoiner) {
let pageNumber = params.pageJoiner.replace('page_number', `${page.pageNumber}`);
pageNumber = pageNumber.replace('total_number', `${total}`);
strBuf.push(pageNumber);
}
if (params.itemJoiner) {
return strBuf.join(params.itemJoiner);
}
return strBuf.join('');
}
private async getHyperlinks(page: PDFPageProxy, viewport: PageViewport): Promise<Map<string, HyperlinkPosition[]>> {
const result: Map<string, HyperlinkPosition[]> = new Map();
// biome-ignore lint/suspicious/noExplicitAny: <unsupported underline type>
const annotations: Array<any> = (await page.getAnnotations({ intent: 'display' })) || [];
for (const i of annotations) {
if (i.subtype !== 'Link') continue;
const url: string = i.url ?? i.unsafeUrl;
if (!url) continue;
const text: string = i.overlaidText;
if (!text) continue;
const rectVp = viewport.convertToViewportRectangle(i.rect);
const left = Math.min(rectVp[0], rectVp[2]) - 0.5;
const top = Math.min(rectVp[1], rectVp[3]) - 0.5;
const right = Math.max(rectVp[0], rectVp[2]) + 0.5;
const bottom = Math.max(rectVp[1], rectVp[3]) + 0.5;
const pos: HyperlinkPosition = { rect: { left, top, right, bottom }, url, text, used: false };
const el = result.get(text);
if (el) {
el.push(pos);
} else {
result.set(text, [pos]);
}
}
return result;
}
public async getImage(params: ParseParameters = {}): Promise<ImageResult> {
const doc = await this.load();
const result = new ImageResult(doc.numPages);
for (let i: number = 1; i <= result.total; i++) {
if (this.shouldParse(i, result.total, params)) {
const page = await doc.getPage(i);
const ops = await page.getOperatorList();
const pageImages: PageImages = { pageNumber: i, images: [] };
result.pages.push(pageImages);
for (let j = 0; j < ops.fnArray.length; j++) {
if (ops.fnArray[j] === pdfjs.OPS.paintInlineImageXObject || ops.fnArray[j] === pdfjs.OPS.paintImageXObject) {
const name = ops.argsArray[j][0];
const isCommon = page.commonObjs.has(name);
const imgPromise = isCommon ? this.resolveEmbeddedImage(page.commonObjs, name) : this.resolveEmbeddedImage(page.objs, name);
const { width, height, kind, data } = await imgPromise;
if (params.minImageWidth && params.minImageWidth > width) {
continue;
}
if (params.minImageHeight && params.minImageHeight > height) {
continue;
}
// biome-ignore lint/suspicious/noExplicitAny: <underlying library does not contain valid typedefs>
const canvasFactory = (doc as any).canvasFactory;
const canvasAndContext = canvasFactory.create(width, height);
const context = canvasAndContext.context;
let imgData = null;
if (kind === pdfjs.ImageKind.RGBA_32BPP) {
imgData = context.createImageData(width, height);
imgData.data.set(data);
} else {
imgData = context.createImageData(width, height);
this.convertToRGBA({
src: data,
dest: new Uint32Array(imgData.data.buffer),
width,
height,
kind,
});
}
context.putImageData(imgData, 0, 0);
// Browser and Node.js compatibility
let buff: Uint8Array;
let dataUrl: string;
if (typeof canvasAndContext.canvas.toBuffer === 'function') {
// Node.js environment (canvas package)
const nodeBuffer = canvasAndContext.canvas.toBuffer('image/png');
buff = new Uint8Array(nodeBuffer);
const base64 = nodeBuffer.toString('base64');
dataUrl = `data:image/png;base64,${base64}`;
} else {
// Browser environment
dataUrl = canvasAndContext.canvas.toDataURL('image/png');
const base64 = dataUrl.split(',')[1];
// Convert base64 to Uint8Array
const binaryString = atob(base64);
buff = new Uint8Array(binaryString.length);
for (let i = 0; i < binaryString.length; i++) {
buff[i] = binaryString.charCodeAt(i);
}
}
pageImages.images.push({
data: buff,
dataUrl,
fileName: name,
height,
width,
kind,
});
}
}
}
}
return result;
}
private convertToRGBA({ src, dest, width, height, kind }: { src: Uint8Array; dest: Uint32Array; width: number; height: number; kind: number }) {
if (kind === pdfjs.ImageKind.RGB_24BPP) {
// RGB 24-bit per pixel
for (let i = 0, j = 0; i < src.length; i += 3, j++) {
const r = src[i];
const g = src[i + 1];
const b = src[i + 2];
dest[j] = (255 << 24) | (b << 16) | (g << 8) | r;
}
} else if (kind === pdfjs.ImageKind.GRAYSCALE_1BPP) {
// Grayscale 1-bit per pixel
let pixelIndex = 0;
for (let i = 0; i < src.length; i++) {
const byte = src[i];
for (let bit = 7; bit >= 0; bit--) {
if (pixelIndex >= width * height) break;
const isWhite = ((byte >> bit) & 1) === 1;
const gray = isWhite ? 255 : 0;
dest[pixelIndex++] = (255 << 24) | (gray << 16) | (gray << 8) | gray;
}
}
} else if (kind === undefined || kind === null) {
// Unknown or undefined kind - try to infer from data length
const bytesPerPixel = src.length / (width * height);
if (Math.abs(bytesPerPixel - 3) < 0.1) {
// Likely RGB 24BPP
for (let i = 0, j = 0; i < src.length; i += 3, j++) {
const r = src[i];
const g = src[i + 1];
const b = src[i + 2];
dest[j] = (255 << 24) | (b << 16) | (g << 8) | r;
}
} else if (Math.abs(bytesPerPixel - 4) < 0.1) {
// Likely RGBA 32BPP
for (let i = 0, j = 0; i < src.length; i += 4, j++) {
const r = src[i];
const g = src[i + 1];
const b = src[i + 2];
const a = src[i + 3];
dest[j] = (a << 24) | (b << 16) | (g << 8) | r;
}
} else if (Math.abs(bytesPerPixel - 1) < 0.1) {
// Likely grayscale 8BPP
for (let i = 0; i < src.length; i++) {
const gray = src[i];
dest[i] = (255 << 24) | (gray << 16) | (gray << 8) | gray;
}
} else {
throw new Error(`convertToRGBA: Cannot infer image format. kind: ${kind}, bytesPerPixel: ${bytesPerPixel}, width: ${width}, height: ${height}, dataLength: ${src.length}`);
}
} else {
throw new Error(
`convertToRGBA: Unsupported image kind: ${kind}. Available kinds: GRAYSCALE_1BPP=${pdfjs.ImageKind.GRAYSCALE_1BPP}, RGB_24BPP=${pdfjs.ImageKind.RGB_24BPP}, RGBA_32BPP=${pdfjs.ImageKind.RGBA_32BPP}`,
);
}
}
private resolveEmbeddedImage(pdfObjects: PDFObjects, name: string): Promise<{ width: number; height: number; kind: number; data: Uint8Array }> {
return new Promise((resolve, reject) => {
// biome-ignore lint/suspicious/noExplicitAny: <underlying library does not contain valid typedefs>
pdfObjects.get(name, (imgData: any) => {
if (imgData) {
// Check different possible data sources
let dataBuff: Uint8Array | undefined;
if (imgData.data instanceof Uint8Array) {
dataBuff = imgData.data;
} else if (imgData.data instanceof Uint8ClampedArray) {
dataBuff = new Uint8Array(imgData.data);
} else if (imgData.data?.buffer) {
// Typed array with buffer
dataBuff = new Uint8Array(imgData.data.buffer);
} else if (imgData.bitmap) {
// Some browsers might use bitmap
// biome-ignore lint/suspicious/noExplicitAny: <underlying library does not contain valid typedefs>
const canvasFactory: BaseCanvasFactory = (this.doc as any).canvasFactory;
const canvasAndContext = canvasFactory.create(imgData.bitmap.width, imgData.bitmap.height);
canvasAndContext.context.drawImage(imgData.bitmap, 0, 0);
const imageData = canvasAndContext.context.getImageData(0, 0, imgData.bitmap.width, imgData.bitmap.height);
dataBuff = new Uint8Array(imageData.data.buffer);
} else if (ArrayBuffer.isView(imgData.data)) {
// Generic typed array
dataBuff = new Uint8Array(imgData.data.buffer, imgData.data.byteOffset, imgData.data.byteLength);
}
if (!dataBuff) {
reject(new Error(`Image object ${name}: data field is empty or invalid. Available fields: ${Object.keys(imgData).join(', ')}`));
return;
}
if (dataBuff.length === 0) {
reject(new Error(`Image object ${name}: data buffer is empty (length: 0)`));
return;
}
resolve({ width: imgData.width, height: imgData.height, kind: imgData.kind, data: dataBuff });
} else {
reject(new Error(`Image object ${name} not found`));
}
});
});
}
public async getScreenshot(params: ParseParameters = {}): Promise<ScreenshotResult> {
//const base = new URL('../../node_modules/pdfjs-dist/', import.meta.url);
//this.options.cMapUrl = new URL('cmaps/', base).href;
//this.options.cMapPacked = true;
//this.options.standardFontDataUrl = new URL('legacy/build/standard_fonts/', base).href;
const doc = await this.load();
const result = new ScreenshotResult(doc.numPages);
if (this.doc === undefined) {
throw new Error('PDF document not loaded');
}
for (let i: number = 1; i <= result.total; i++) {
if (this.shouldParse(i, result.total, params)) {
const page = await this.doc.getPage(i);
// biome-ignore lint/suspicious/noExplicitAny: <underlying library does not contain valid typedefs>
const canvasFactory = (this.doc as any).canvasFactory;
const viewport = page.getViewport({ scale: 1.0 });
const canvasAndContext = canvasFactory.create(viewport.width, viewport.height);
const renderContext = {
canvasContext: canvasAndContext.context,
viewport,
canvas: canvasAndContext.canvas,
};
const renderTask = page.render(renderContext);
await renderTask.promise;
// Convert the canvas to an image buffer.
let data: Uint8Array;
let dataUrl: string;
if (typeof canvasAndContext.canvas.toBuffer === 'function') {
// Node.js environment (canvas package)
const nodeBuffer = canvasAndContext.canvas.toBuffer('image/png');
data = new Uint8Array(nodeBuffer);
const base64 = nodeBuffer.toString('base64');
dataUrl = `data:image/png;base64,${base64}`;
} else {
// Browser environment
dataUrl = canvasAndContext.canvas.toDataURL('image/png');
const base64 = dataUrl.split(',')[1];
// Convert base64 to Uint8Array
const binaryString = atob(base64);
data = new Uint8Array(binaryString.length);
for (let i = 0; i < binaryString.length; i++) {
data[i] = binaryString.charCodeAt(i);
}
}
result.pages.push({
data,
dataUrl,
pageNumber: i,
});
page.cleanup();
}
}
return result;
}
public async getTable(params: ParseParameters = {}): Promise<TableResult> {
const doc = await this.load();
const result = new TableResult(doc.numPages);
if (this.doc === undefined) {
throw new Error('PDF document not loaded');
}
for (let i: number = 1; i <= result.total; i++) {
if (this.shouldParse(i, result.total, params)) {
const page = await this.doc.getPage(i);
//const viewport = page.getViewport({ scale: 1 });
//viewport.convertToViewportPoint(0, 0);
const store = await this.getPageTables(page);
//const store = await this.getPageGeometry(page);
store.normalize();
const tableDataArr = store.getTableData();
await this.fillPageTables(page, tableDataArr);
for (const table of tableDataArr) {
//if (table.cellCount < 3) continue
const pageTableResult: PageTableResult = { num: i, tables: table.toArray() };
result.pages.push(pageTableResult);
//pageTableResult.tables.push(table.toData())
}
page.cleanup();
}
}
// for (const table of Table.AllTables) {
// if (table.cellCount < 3) continue
// const str = table.toString()
// console.log(str)
// }
return result;
}
private getPathGeometry(mm: MinMax): PathGeometry {
const width = mm[2] - mm[0];
const height = mm[3] - mm[1];
if (mm[0] === Infinity) {
return PathGeometry.undefined;
}
if (width > 5 && height > 5) {
return PathGeometry.rectangle;
} else if (width > 5 && height === 0) {
return PathGeometry.hline;
} else if (width === 0 && height > 5) {
return PathGeometry.vline;
}
return PathGeometry.undefined;
}
private async getPageTables(page: PDFPageProxy): Promise<LineStore> {
const lineStore: LineStore = new LineStore();
const viewport = page.getViewport({ scale: 1 });
let transformMatrix = [1, 0, 0, 1, 0, 0];
const transformStack: Array<Array<number>> = [];
const opList = await page.getOperatorList();
for (let i = 0; i < opList.fnArray.length; i++) {
const fn = opList.fnArray[i];
const args = opList.argsArray[i];
const op = args?.[0] ?? 0;
const mm = args?.[2] ?? [Infinity, Infinity, -Infinity, -Infinity];
//const minMax = new Float32Array([Infinity, Infinity, -Infinity, -Infinity]);
if (fn === pdfjs.OPS.constructPath) {
if (op === pdfjs.OPS.fill) {
//debugger;
}
if (op !== pdfjs.OPS.stroke) {
continue;
}
const pg = this.getPathGeometry(mm);
if (pg === PathGeometry.rectangle) {
const rect = new Rectangle(new Point(mm[0], mm[1]), mm[2] - mm[0], mm[3] - mm[1]);
rect.transform(transformMatrix);
rect.transform(viewport.transform);
lineStore.addRectangle(rect);
} else if (pg === PathGeometry.hline || pg === PathGeometry.vline) {
const from = new Point(mm[0], mm[1]);
const to = new Point(mm[2], mm[3]);
const line = new Line(from, to);
line.transform(transformMatrix);
line.transform(viewport.transform);
lineStore.add(line);
} else {
//debugger;
}
// if (op === pdfjs.OPS.rectangle) {
// debugger;
// } else if (op === pdfjs.OPS.moveTo) {
// debugger;
// } else if (op === pdfjs.OPS.lineTo) {
// debugger;
// } else if (op === pdfjs.OPS.endPath) {
// const combinedMatrix = pdfjs.Util.transform(viewport.transform, transformMatrix);
// // while (args[1].length) {
// // const drawOp = args[1].shift();
// // debugger;
// // }
// } else {
// //debugger;
// }
} else if (fn === pdfjs.OPS.setLineWidth) {
//debugger;
} else if (fn === pdfjs.OPS.save) {
transformStack.push(transformMatrix);
} else if (fn === pdfjs.OPS.restore) {
const restoredMatrix = transformStack.pop();
if (restoredMatrix) {
transformMatrix = restoredMatrix;
}
} else if (fn === pdfjs.OPS.transform) {
//transformMatrix = this.transform_fn(transformMatrix, args);
transformMatrix = pdfjs.Util.transform(transformMatrix, args);
}
}
return lineStore;
}
// private async getPageGeometry(page: PDFPageProxy): Promise<LineStore> {
// const lineStore: LineStore = new LineStore();
// const opList = await page.getOperatorList();
// const viewport = page.getViewport({ scale: 1 });
// let transformMatrix = [1, 0, 0, 1, 0, 0];
// const transformStack: Array<Array<number>> = [];
// let current_x: number = 0;
// let current_y: number = 0;
// for (let j = 0; j < opList.fnArray.length; j++) {
// const fn = opList.fnArray[j];
// const args = opList.argsArray[j];
// if (fn === pdfjs.OPS.constructPath) {
// while (args[0].length) {
// const op = args[0].shift();
// const combinedMatrix = pdfjs.Util.transform(viewport.transform, transformMatrix);
// if (op === pdfjs.OPS.rectangle) {
// const x = args[1].shift();
// const y = args[1].shift();
// const width = args[1].shift();
// const height = args[1].shift();
// if (Math.min(width, height) <= 2) {
// // TODO remove
// debugger;
// }
// const rect = new Rectangle(new Point(x, y), width, height);
// rect.transform(combinedMatrix);
// //rect.transform(viewport.transform);
// lineStore.addRectangle(rect);
// } else if (op === pdfjs.OPS.moveTo) {
// current_x = args[1].shift();
// current_y = args[1].shift();
// } else if (op === pdfjs.OPS.lineTo) {
// const x = args[1].shift();
// const y = args[1].shift();
// //default trasform
// const from = new Point(current_x, current_y);
// const to = new Point(x, y);
// const line = new Line(from, to);
// line.transform(combinedMatrix);
// //line.transform(viewport.transform);
// // // viewport transform
// // const _from = viewport.convertToViewportPoint(line.from.x, line.from.y)
// // const _to = viewport.convertToViewportPoint(line.to.x, line.to.y)
// //
// // const transformedLine = new Line(new Point(_from[0], _from[1]), new Point(_to[0], _to[1]))
// lineStore.add(line);
// current_x = x;
// current_y = y;
// }
// }
// } else if (fn === pdfjs.OPS.save) {
// transformStack.push(transformMatrix);
// } else if (fn === pdfjs.OPS.restore) {
// const restoredMatrix = transformStack.pop();
// if (restoredMatrix) {
// transformMatrix = restoredMatrix;
// }
// } else if (fn === pdfjs.OPS.transform) {
// //transformMatrix = this.transform_fn(transformMatrix, args);
// transformMatrix = pdfjs.Util.transform(transformMatrix, args);
// }
// }
// return lineStore;
// }
private async fillPageTables(page: PDFPageProxy, pageTables: Array<TableData>): Promise<void> {
//const resultTable: Array<Table> = []
const viewport = page.getViewport({ scale: 1 });
// for (let i = 0; i < pageTables.length; i++) {
// const currentTable = pageTables[i]
// }
//pageTables = pageTables.filter((table) => table.cellCount > 3)
const textContent = await page.getTextContent({
includeMarkedContent: false,
disableNormalization: false,
});
for (const textItem of textContent.items) {
if (!('str' in textItem)) continue;
const tx = pdfjs.Util.transform(pdfjs.Util.transform(viewport.transform, textItem.transform), [1, 0, 0, -1, 0, 0]);
//const resXY = viewport.convertToViewportPoint(tx[4], tx[5]);
// textItem.transform = pdfjs.Util.transform(viewport.transform, textItem.transform)
// textItem.transform[5] = viewport.height - textItem.transform[5] - textItem.height
for (const pageTable of pageTables) {
const cell = pageTable.findCell(tx[4], tx[5]);
if (cell) {
cell.text.push(textItem.str);
if (textItem.hasEOL) {
cell.text.push('\n');
}
break;
}
}
//Table.tryAddText(pageTables, textItem)
}
}
}
PDFParse.setWorker();
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