SDFTest

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  exports.runSDFTest = () => {
14    const PDFNet = exports.Core.PDFNet;
15
16    const main = async () => {
17      console.log('Beginning SDF Test.');
18      const inputURL = '../TestFiles/';
19
20      try {
21        // Here we create a SDF/Cos document directly from PDF file. In case you have
22        // PDFDoc you can always access SDF/Cos document using PDFDoc.GetSDFDoc() method.
23        const docorig = await PDFNet.PDFDoc.createFromURL(inputURL + 'fish.pdf');
24        const doc = await docorig.getSDFDoc();
25        doc.initSecurityHandler();
26        doc.lock();
27        console.log('Modifying into dictionary, adding custom properties, embedding a stream...');
28
29        const trailer = await doc.getTrailer(); // Get the trailer
30
31        // Now we will change PDF document information properties using SDF API
32
33        // Get the Info dictionary.
34
35        let itr = await trailer.find('Info');
36        let info;
37        if (await itr.hasNext()) {
38          info = await itr.value();
39          // Modify 'Producer' entry.
40          info.putString('Producer', 'PDFTron PDFNet');
41
42          // read title entry if it is present
43          itr = await info.find('Author');
44          if (await itr.hasNext()) {
45            const itrval = await itr.value();
46            const oldstr = await itrval.getAsPDFText();
47            info.putText('Author', oldstr + ' - Modified');
48          } else {
49            info.putString('Author', 'Me, myself, and I');
50          }
51        } else {
52          // Info dict is missing.
53          info = await trailer.putDict('Info');
54          info.putString('Producer', 'PDFTron PDFNet');
55          info.putString('Title', 'My document');
56        }
57
58        // Create a custom inline dictionary within Infor dictionary
59        const customDict = await info.putDict('My Direct Dict');
60        customDict.putNumber('My Number', 100); // Add some key/value pairs
61        customDict.putArray('My Array');
62
63        // Create a custom indirect array within Info dictionary
64        const customArray = await doc.createIndirectArray();
65        info.put('My Indirect Array', customArray); // Add some entries
66
67        // create indirect link to root
68        const trailerRoot = await trailer.get('Root');
69        customArray.pushBack(await trailerRoot.value());
70
71        // Embed a custom stream (file mystream.txt).
72        const embedFile = await PDFNet.Filter.createURLFilter(inputURL + 'my_stream.txt');
73        const mystm = await PDFNet.FilterReader.create(embedFile);
74        const indStream = await doc.createIndirectStreamFromFilter(mystm);
75        customArray.pushBack(indStream);
76
77        const docbuf = await doc.saveMemory(0, '%PDF-1.4'); // PDFNet.SDFDoc.SaveOptions.e_remove_unused
78        saveBufferAsPDFDoc(docbuf, 'sdftest_out.pdf');
79        console.log('Done.');
80      } catch (err) {
81        console.log(err);
82      }
83    };
84    // add your own license key as the second parameter, e.g. PDFNet.runWithCleanup(main, 'YOUR_LICENSE_KEY')
85    PDFNet.runWithCleanup(main);
86  };
87})(window);
88// eslint-disable-next-line spaced-comment
89//# sourceURL=SDFTest.js