XFDF Import

1//---------------------------------------------------------------------------------------
2// Copyright (c) 2001-2023 by Apryse Software Inc. All Rights Reserved.
3// Consult legal.txt regarding legal and license information.
4//---------------------------------------------------------------------------------------
5
6(exports => {
7
8
9
10
11
12
13
14
15
16
17  const PDFNet = exports.Core.PDFNet;
18
19  const createFDFFromXFDFURL = url =>
20    new Promise((resolve, reject) => {
21      const xhttp = new XMLHttpRequest();
22
23      xhttp.onreadystatechange = function() {
24        if (this.readyState === this.DONE) {
25          if (xhttp.status === 200) {
26            const data = xhttp.responseText;
27            PDFNet.FDFDoc.createFromXFDF(data).then(
28              fdfdoc => {
29                resolve(fdfdoc);
30              },
31              e => {
32                reject(e);
33              }
34            );
35          } else {
36            reject('Request for URL ' + url + ' received incorrect HTTP response code ' + xhttp.status);
37          }
38        }
39      };
40      xhttp.open('GET', url, true);
41      xhttp.send();
42    });
43
44  exports.runFDFTest = () => {
45    const main = async () => {
46      console.log('Beginning FDF Test.');
47      const inputUrl = '../TestFiles/';
48
49      // Import XFDF into FDF, then update adjust the PDF annotations to match the FDF
50      try {
51        // Annotations
52        console.log('Import annotations from XFDF to FDF.');
53        const fdfDoc = await createFDFFromXFDFURL(inputUrl + 'form1_annots.xfdf');
54
55        const doc = await PDFNet.PDFDoc.createFromURL(inputUrl + 'form1.pdf');
56        doc.initSecurityHandler();
57
58        console.log('Update annotations from fdf');
59        doc.fdfUpdate(fdfDoc);
60
61        const docbuf = await doc.saveMemoryBuffer(PDFNet.SDFDoc.SaveOptions.e_linearized);
62        saveBufferAsPDFDoc(docbuf, 'form1_with_annots.pdf');
63        console.log('Done sample');
64      } catch (err) {
65        console.log(err);
66      }
67
68      try {
69        console.log('Extract annotations from PDF.');
70        const doc = await PDFNet.PDFDoc.createFromURL(`${inputUrl}form1.pdf`);
71        doc.initSecurityHandler();
72
73        // extract fdf
74        const fdfDoc = await doc.fdfExtract(PDFNet.PDFDoc.ExtractFlag.e_both);
75        // save as xfdf
76        const xfdfStr = await fdfDoc.saveAsXFDFAsString();
77        console.log('XFDF extracted from form1.pdf');
78        console.log(xfdfStr);
79
80        console.log('Done sample');
81      } catch (err) {
82        console.log(err);
83      }
84
85      try {
86        console.log('Extract existing fields from PDF.');
87        const doc = await PDFNet.PDFDoc.createFromURL(`${inputUrl}form1.pdf`);
88        doc.initSecurityHandler();
89
90        for (const itr = await doc.getFieldIteratorBegin(); await itr.hasNext(); itr.next()) {
91          const field = await itr.current();
92          console.log(await field.getName());
93        }
94        console.log('Done sample');
95      } catch (err) {
96        console.log(err);
97      }
98    };
99
100    // add your own license key as the second parameter, e.g. PDFNet.runWithCleanup(main, 'YOUR_LICENSE_KEY')
101    PDFNet.runWithCleanup(main);
102  };
103})(window);
104// eslint-disable-next-line spaced-comment
105//# sourceURL=FDFTest.js