How to use the pdfjs-dist.NativeImageDecoding function in pdfjs-dist

To help you get started, we’ve selected a few pdfjs-dist examples, based on popular ways it is used in public projects.

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github oaeproject / Hilary / packages / oae-preview-processor / lib / processors / file / pdf.js View on Github external
const pagesDir = path.join(ctx.baseDir, PAGES_SUBDIRECTORY);
  const output = path.join(pagesDir, TXT_CONTENT_FILENAME);
  const data = new Uint8Array(fs.readFileSync(pdfPath));

  try {
    // Create a directory where we can store the files
    await fsMakeDir(pagesDir);

    // Will be using promises to load document, pages and misc data instead of
    // callback.
    const loadedPDFDocument = pdfjsLib.getDocument({
      data,
      // Try to export JPEG images directly if they don't need any further
      // processing.
      nativeImageDecoderSupport: pdfjsLib.NativeImageDecoding.NONE
    });

    const doc = await loadedPDFDocument.promise;
    const { numPages } = doc;

    ctx.addPreview(output, 'txt');
    ctx.addPreviewMetadata('pageCount', numPages);

    await processAllPages(ctx, pagesDir, numPages, doc);
    await fsWriteFile(output, pdfContents.join(' '));

    _generateThumbnail(ctx, pdfPath, pagesDir, callback);
  } catch (error) {
    const errorMessage = 'Unable to process PDF';
    log().error({ error }, errorMessage);
    return callback({ code: 500, msg: errorMessage });
github ScientaNL / pdf-extractor / lib / PdfExtractor.js View on Github external
parseFromFileBuffer(pdfBuffer) {
		// Read the PDF file into a typed array so PDF.js can load it.
		let rawData = new Uint8Array(pdfBuffer);

		domFacade.setGlobalDom();

		return PDFJSLib.getDocument({
			data: rawData,
			// Try to export JPEG images directly if they don't need any further processing.
			nativeImageDecoderSupport: PDFJSLib.NativeImageDecoding.DISPLAY
		}).then((doc) => this.parseDocument(doc))
			.then(() => this.metaDataHandler);
	}
github zeddysoft / pdf-processor / handler.js View on Github external
isValidAutoLabel = true;
                                    break;
                                }
                            }
                            if (isValidAutoLabel) {
                                automobiles.push(extractedImages[imageIndex]);
                            }
                            resolve(data);
                        }
                    });
                });
            }

            let loadingTask = pdfjsLib.getDocument({
                data: rawImageFile,
                nativeImageDecoderSupport: pdfjsLib.NativeImageDecoding.DISPLAY,
            });

            loadingTask.promise.then(function (doc) {
                let numPages = doc.numPages;
                console.log('# Document Loaded');
                console.log(`Number of Pages:  ${numPages}`);

                let lastPromise = Promise.resolve();
                let loadPage = function (pageNum) {
                    return doc.getPage(pageNum).then(page => {
                        console.log(`# Page ${pageNum}`);

                        return page.getOperatorList().then(opList => {
                            let svgGfx = new pdfjsLib.SVGGraphics(page.commonObjs, page.objs);
                            svgGfx.embedFonts = true;
                            for (let i = 0; i < opList.fnArray.length; i++) {