How to use PDFImage method in wpt

Best JavaScript code snippet using wpt

image.js

Source:image.js

...46    value = addend + value * coefficient;47    // Clamp the value to the range48    return value < 0 ? 0 : value > max ? max : value;49  }50  function PDFImage(xref, res, image, inline, smask, mask, isMask) {51    this.image = image;52    if (image.getParams) {53      // JPX/JPEG2000 streams directly contain bits per component54      // and color space mode information.55      TODO('get params from actual stream');56      // var bits = ...57      // var colorspace = ...58    }59    // TODO cache rendered images?60    var dict = image.dict;61    this.width = dict.get('Width', 'W');62    this.height = dict.get('Height', 'H');63    if (this.width < 1 || this.height < 1)64      error('Invalid image width: ' + this.width + ' or height: ' +65            this.height);66    this.interpolate = dict.get('Interpolate', 'I') || false;67    this.imageMask = dict.get('ImageMask', 'IM') || false;68    var bitsPerComponent = image.bitsPerComponent;69    if (!bitsPerComponent) {70      bitsPerComponent = dict.get('BitsPerComponent', 'BPC');71      if (!bitsPerComponent) {72        if (this.imageMask)73          bitsPerComponent = 1;74        else75          error('Bits per component missing in image: ' + this.imageMask);76      }77    }78    this.bpc = bitsPerComponent;79    if (!this.imageMask) {80      var colorSpace = dict.get('ColorSpace', 'CS');81      if (!colorSpace) {82        TODO('JPX images (which don"t require color spaces');83        colorSpace = new Name('DeviceRGB');84      }85      this.colorSpace = ColorSpace.parse(colorSpace, xref, res);86      this.numComps = this.colorSpace.numComps;87    }88    this.decode = dict.get('Decode', 'D');89    this.needsDecode = false;90    if (this.decode &&91        ((this.colorSpace && !this.colorSpace.isDefaultDecode(this.decode)) ||92         (isMask && !ColorSpace.isDefaultDecode(this.decode, 1)))) {93      this.needsDecode = true;94      // Do some preprocessing to avoid more math.95      var max = (1 << bitsPerComponent) - 1;96      this.decodeCoefficients = [];97      this.decodeAddends = [];98      for (var i = 0, j = 0; i < this.decode.length; i += 2, ++j) {99        var dmin = this.decode[i];100        var dmax = this.decode[i + 1];101        this.decodeCoefficients[j] = dmax - dmin;102        this.decodeAddends[j] = max * dmin;103      }104    }105    if (smask) {106      this.smask = new PDFImage(xref, res, smask, false);107    } else if (mask) {108      if (isStream(mask)) {109        this.mask = new PDFImage(xref, res, mask, false, null, null, true);110      } else {111        // Color key mask (just an array).112        this.mask = mask;113      }114    }115  }116  /**117   * Handles processing of image data and calls the callback with an argument118   * of a PDFImage when the image is ready to be used.119   */120  PDFImage.buildImage = function PDFImage_buildImage(callback, handler, xref,121                                                     res, image, inline) {122    var imageDataPromise = new Promise();123    var smaskPromise = new Promise();124    var maskPromise = new Promise();125    // The image data and smask data may not be ready yet, wait till both are126    // resolved.127    Promise.all([imageDataPromise, smaskPromise, maskPromise]).then(128        function(results) {129      var imageData = results[0], smaskData = results[1], maskData = results[2];130      var image = new PDFImage(xref, res, imageData, inline, smaskData,131                               maskData);132      callback(image);133    });134    handleImageData(handler, xref, res, image, imageDataPromise);135    var smask = image.dict.get('SMask');136    var mask = image.dict.get('Mask');137    if (smask) {138      handleImageData(handler, xref, res, smask, smaskPromise);139      maskPromise.resolve(null);140    } else {141      smaskPromise.resolve(null);142      if (mask) {143        if (isStream(mask)) {144          handleImageData(handler, xref, res, mask, maskPromise);...

test-main.js

Source:test-main.js

...16      });17    }18  });19  beforeEach(function() {20     pdfImage = new PDFImage(pdfPath)21  });22  it("should have correct basename", function () {23    expect(pdfImage.pdfFileBaseName).equal("test");24  });25  26  it("should set custom basename", function() {27    pdfImage.setPdfFileBaseName('custom-basename');28    expect(pdfImage.pdfFileBaseName).equal("custom-basename");29  });30  it("should return correct page path", function () {31    expect(pdfImage.getOutputImagePathForPage(1))32      .equal("/tmp/test-1.png");33    expect(pdfImage.getOutputImagePathForPage(2))34      .equal("/tmp/test-2.png");35    expect(pdfImage.getOutputImagePathForPage(1000))36      .equal("/tmp/test-1000.png");37    expect(pdfImage.getOutputImagePathForFile())38      .equal("/tmp/test.png");39  });40  it("should return correct convert command", function () {41    expect(pdfImage.constructConvertCommandForPage(1))42      .equal('convert "/tmp/test.pdf[1]" "/tmp/test-1.png"');43  });44  it("should return correct convert command to combine images", function () {45    expect(pdfImage.constructCombineCommandForFile(['/tmp/test-0.png', '/tmp/test-1.png']))46      .equal('convert -append /tmp/test-0.png /tmp/test-1.png "/tmp/test.png"');47  });48  it("should use gm when you ask it to", function () {49    pdfImage = new PDFImage(pdfPath, {graphicsMagick: true});50    expect(pdfImage.constructConvertCommandForPage(1))51      .equal('gm convert "/tmp/test.pdf[1]" "/tmp/test-1.png"');52  });53  // TODO: Do page updating test54  it("should convert PDF's page to a file with the default extension", function () {55    return new Promise(function(resolve, reject) {56      pdfImage.convertPage(1).then(function (imagePath) {57        expect(imagePath).equal("/tmp/test-1.png");58        expect(fs.existsSync(imagePath)).to.be.true;59        generatedFiles.push(imagePath);60        resolve();61      }).catch(function(err){62        reject(err);63      });64    });65  });66  it("should convert PDF's page 10 to a file with the default extension", function () {67    return new Promise(function(resolve, reject){68      pdfImage.convertPage(9).then(function (imagePath) {69        expect(imagePath).equal("/tmp/test-9.png");70        expect(fs.existsSync(imagePath)).to.be.true;71        generatedFiles.push(imagePath);72        resolve();73      }).catch(function(err){74        reject(err);75      });76    })77  });78  it("should convert PDF's page to file with a specified extension", function () {79    return new Promise(function(resolve, reject) {80      pdfImage.setConvertExtension("jpeg");81      pdfImage.convertPage(1).then(function (imagePath) {82        expect(imagePath).equal("/tmp/test-1.jpeg");83        expect(fs.existsSync(imagePath)).to.be.true;84        generatedFiles.push(imagePath);85        resolve();86      }).catch(function(err){87        reject(err);88      });89    });90  });91  it("should convert all PDF's pages to files", function () {92    return new Promise(function(resolve, reject) {93      pdfImage.convertFile().then(function (imagePaths) {94        imagePaths.forEach(function(imagePath){95          expect(fs.existsSync(imagePath)).to.be.true;96          generatedFiles.push(imagePath);97        });98        resolve();99      }).catch(function(err){100        reject(err);101      });102    });103  });104  it("should convert all PDF's pages to single image", function () {105    return new Promise(function(resolve, reject){106      let pdfImageCombined = new PDFImage(pdfPath, {107        combinedImage: true,108      });109      pdfImageCombined.convertFile().then(function (imagePath) {110        expect(imagePath).to.equal("/tmp/test.png");111        expect(fs.existsSync(imagePath)).to.be.true;112        generatedFiles.push(imagePath);113        resolve();114      }).catch(function (error) {115        reject(error);116      });117    })118  });119  it("should return # of pages", function () {120    return new Promise(function(resolve, reject) {...

pdf-image-tests.ts

Source:pdf-image-tests.ts

1import { PDFImage } from 'pdf-image';2// $ExpectType PDFImage<false>3new PDFImage('path');4// $ExpectType Promise<string[]>5new PDFImage('path').convertFile();6// $ExpectType Promise<string>7new PDFImage('path', { combinedImage: true }).convertFile();8// $ExpectType Promise<string | string[]>9new PDFImage<boolean>('path', { combinedImage: true }).convertFile();10// $ExpectError11new PDFImage<false>('path', { combinedImage: true });12new PDFImage('path', { convertOptions: { "-adaptive-blur": '' } });13// $ExpectError...

Using AI Code Generation

1var PDFImage = require("pdf-image").PDFImage;2var pdfImage = new PDFImage("/path/to/file.pdf");3pdfImage.convertPage(0).then(function (imagePath) {4  console.log(imagePath);5});6var PDFImage = require("pdf-image").PDFImage;7var pdfImage = new PDFImage("/path/to/file.pdf");8pdfImage.convertFile().then(function (imagePaths) {9  console.log(imagePaths[0]);10  console.log(imagePaths[1]);11});12var PDFImage = require("pdf-image").PDFImage;13var pdfImage = new PDFImage("/path/to/file.pdf", {14  convertOptions: {15  },16});17pdfImage.convertFile().then(function (imagePaths) {18  console.log(imagePaths[0]);19  console.log(imagePaths[1]);20});21var PDFImage = require("pdf-image").PDFImage;22var pdfImage = new PDFImage("/path/to/file.pdf", {23  convertOptions: {24  },25});26pdfImage.convertFile().then(function (imagePaths) {27  console.log(imagePaths[0]);28  console.log(imagePaths[1]);29});

Using AI Code Generation

1const PDFImage = require("pdf-image").PDFImage;2const pdfImage = new PDFImage("test.pdf");3pdfImage.convertPage(0).then(function (imagePath) {4  console.log("imagePath", imagePath);5});6#### new PDFImage(pdfPath, options)

Using AI Code Generation

1var PDFImage = require("pdf-image").PDFImage;2var pdfImage = new PDFImage("test.pdf");3pdfImage.convertPage(0).then(function (imagePath) {4  console.log("Image path is: " + imagePath);5}, function (err) {6  console.log(err);7});

Using AI Code Generation

1var pdfImage = require("pdf-image").PDFImage;2var pdf_path = "test.pdf";3var pdfImage = new pdfImage(pdf_path);4var options = { convertOptions: { "-density": 300 } };5pdfImage.convertPage(0).then(function(imagePath) {6  console.log("imagePath", imagePath);7});

Using AI Code Generation

1const wptoimage = require('wptoimage');2const pdfimage = new wptoimage.PDFImage();3const fs = require('fs');4const path = require('path');5const wptopdf = require('wptopdf');6const pdf = new wptopdf.PDF();7const wptoimage = require('wptoimage');8const pdfimage = new wptoimage.PDFImage();9const fs = require('fs');10const path = require('path');11const wptopdf = require('wptopdf');12const pdf = new wptopdf.PDF();13const wptoimage = require('wptoimage');14const pdfimage = new wptoimage.PDFImage();15const fs = require('fs');16const path = require('path');17const wptopdf = require('wptopdf');18const pdf = new wptopdf.PDF();19const wptoimage = require('wptoimage');20const pdfimage = new wptoimage.PDFImage();21const fs = require('fs');22const path = require('path');23const wptopdf = require('wptopdf');24const pdf = new wptopdf.PDF();25const wptoimage = require('wptoimage');26const pdfimage = new wptoimage.PDFImage();27const fs = require('fs');28const path = require('path');29const wptopdf = require('wptopdf');30const pdf = new wptopdf.PDF();31const wptoimage = require('wptoimage');32const pdfimage = new wptoimage.PDFImage();33const fs = require('fs');34const path = require('path');35const wptopdf = require('wptopdf');36const pdf = new wptopdf.PDF();37const wptopdf = require('wptopdf');38const pdf = new wptopdf.PDF();39const wptopdf = require('wptopdf');

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