PDF/A

1//---------------------------------------------------------------------------------------
2// Copyright (c) 2001-2019 by PDFTron Systems Inc. All Rights Reserved.
3// Consult legal.txt regarding legal and license information.
4//---------------------------------------------------------------------------------------
5
6package com.pdftron.android.pdfnetsdksamples.samples;
7
8import com.pdftron.android.pdfnetsdksamples.OutputListener;
9import com.pdftron.android.pdfnetsdksamples.PDFNetSample;
10import com.pdftron.android.pdfnetsdksamples.R;
11import com.pdftron.android.pdfnetsdksamples.util.Utils;
12import com.pdftron.common.PDFNetException;
13import com.pdftron.pdf.PDFNet;
14import com.pdftron.pdf.pdfa.PDFACompliance;
15
16import java.util.ArrayList;
17
18public class PDFATest extends PDFNetSample {
19
20	private static OutputListener mOutputListener;
21
22	private static ArrayList<String> mFileList = new ArrayList<>();
23
24    public PDFATest() {
25        setTitle(R.string.sample_pdfa_title);
26        setDescription(R.string.sample_pdfa_description);
27
28        // The standard library does not include PDF/A validation/conversion,
29        // thus this sample will fail. Please, comment out this call
30        // if using the full libraries.
31        // DisableRun();
32    }
33
34	@Override
35	public void run(OutputListener outputListener) {
36		super.run(outputListener);
37		mOutputListener = outputListener;
38		mFileList.clear();
39		printHeader(outputListener);
40        try{ 
41            PDFNet.setColorManagement(PDFNet.e_lcms); // Required for proper PDF/A validation and conversion.
42        
43            //-----------------------------------------------------------
44            // Example 1: PDF/A Validation
45            //-----------------------------------------------------------
46        
47            String filename = "newsletter.pdf";
48            /* The max_ref_objs parameter to the PDFACompliance constructor controls the maximum number 
49            of object numbers that are collected for particular error codes. The default value is 10 
50            in order to prevent spam. If you need all the object numbers, pass 0 for max_ref_objs. */
51            PDFACompliance pdf_a = new PDFACompliance(false, Utils.getAssetTempFile(INPUT_PATH + filename).getAbsolutePath(), null, PDFACompliance.e_Level2B, null, 10);
52            printResults(pdf_a, filename);
53            pdf_a.destroy();
54        } catch (PDFNetException e) {
55            System.out.println(e.getMessage());
56        }
57        
58        
59        
60            //-----------------------------------------------------------
61            // Example 2: PDF/A Conversion
62            //-----------------------------------------------------------
63        try {
64            String filename = "fish.pdf";
65            PDFACompliance pdf_a = new PDFACompliance(true, Utils.getAssetTempFile(INPUT_PATH + filename).getAbsolutePath(), null, PDFACompliance.e_Level2B, null, 10);
66            filename = "pdfa.pdf";
67            pdf_a.saveAs(Utils.createExternalFile(filename, mFileList).getAbsolutePath(), false);
68            pdf_a.destroy();
69            // output "pdf_a.pdf"
70
71            // Re-validate the document after the conversion...
72            pdf_a = new PDFACompliance(false, Utils.createExternalFile(filename, mFileList).getAbsolutePath(), null, PDFACompliance.e_Level2B, null, 10);
73            printResults(pdf_a, filename);
74            pdf_a.destroy();
75
76        } catch (PDFNetException e) {
77            System.out.println(e.getMessage());
78        }
79
80        mOutputListener.println("PDFACompliance test completed.");
81
82		for (String file : mFileList) {
83			addToFileList(file);
84		}
85		printFooter(outputListener);
86	}
87
88
89    static void printResults(PDFACompliance pdf_a, String filename) {
90        try {
91            int err_cnt = pdf_a.getErrorCount();
92            mOutputListener.print(filename);
93            if (err_cnt == 0) {
94                mOutputListener.print(": OK.\n");
95            } else {
96                mOutputListener.println(" is NOT a valid PDFA.");
97                for (int i = 0; i < err_cnt; ++i) {
98                    int c = pdf_a.getError(i);
99                    mOutputListener.println(" - e_PDFA " + c + ": " + PDFACompliance.getPDFAErrorMessage(c) + ".");
100                    if (true) {
101                        int num_refs = pdf_a.getRefObjCount(c);
102                        if (num_refs > 0) {
103                            mOutputListener.print("   Objects: ");
104                            for (int j = 0; j < num_refs; ) {
105                                mOutputListener.print(String.valueOf(pdf_a.getRefObj(c, j)));
106                                if (++j != num_refs) mOutputListener.print(", ");
107                            }
108                            mOutputListener.println();
109                        }
110                    }
111                }
112                mOutputListener.println();
113            }
114        } catch (PDFNetException e) {
115            System.out.println(e.getMessage());
116        }
117    }
118
119}