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Combine PDF Files

Combine Files

This sample combines up to 20 PDF files into a single PDF file.

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1// Get the samples from https://www.adobe.com/go/pdftoolsapi_java_samples
2// Run the sample:
3// mvn -f pom.xml exec:java -Dexec.mainClass=com.adobe.pdfservices.operation.samples.combinepdf.CombinePDF
4 
5 public class CombinePDF {
6

7   // Initialize the logger.
8   private static final Logger LOGGER = LoggerFactory.getLogger(CombinePDF.class);
9

10   public static void main(String[] args) {
11     try {
12       // Initial setup, create credentials instance.
13       Credentials credentials = Credentials.serviceAccountCredentialsBuilder()
14           .fromFile("pdfservices-api-credentials.json")
15           .build();
16

17       //Create an ExecutionContext using credentials and create a new operation instance.
18       ExecutionContext executionContext = ExecutionContext.create(credentials);
19       CombineFilesOperation combineFilesOperation = CombineFilesOperation.createNew();
20

21       // Add operation input from source files.
22       FileRef combineSource1 = FileRef.createFromLocalFile("src/main/resources/combineFilesInput1.pdf");
23       FileRef combineSource2 = FileRef.createFromLocalFile("src/main/resources/combineFilesInput2.pdf");
24       combineFilesOperation.addInput(combineSource1);
25       combineFilesOperation.addInput(combineSource2);
26

27       // Execute the operation.
28       FileRef result = combineFilesOperation.execute(executionContext);
29

30       // Save the result to the specified location.
31       result.saveAs("output/combineFilesOutput.pdf");
32

33     } catch (IOException | ServiceApiException | SdkException | ServiceUsageException e) {
34       LOGGER.error("Exception encountered while executing operation", e);
35     }
36   }
37 }
38

Combine pages from multiple files

This combine sample combines specific pages from up to 20 different PDF files into a single PDF file. Optional arguments allow specifying page ranges for each file to combine in the output file.

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1// Get the samples from https://www.adobe.com/go/pdftoolsapi_java_samples
2// Run the sample:
3// mvn -f pom.xml exec:java -Dexec.mainClass=com.adobe.pdfservices.operation.samples.combinepdf.CombinePDFWithPageRanges
4 
5 public class CombinePDFWithPageRanges {
6 
7    // Initialize the logger.
8    private static final Logger LOGGER = LoggerFactory.getLogger(CombinePDFWithPageRanges.class);
9 
10    public static void main(String[] args) {
11 
12      try {
13 
14        // Initial setup, create credentials instance.
15        Credentials credentials = Credentials.serviceAccountCredentialsBuilder()
16            .fromFile("pdfservices-api-credentials.json")
17            .build();
18 
19        //Create an ExecutionContext using credentials and create a new operation instance.
20        ExecutionContext executionContext = ExecutionContext.create(credentials);
21        CombineFilesOperation combineFilesOperation = CombineFilesOperation.createNew();
22 
23        // Create a FileRef instance from a local file.
24        FileRef firstFileToCombine = FileRef.createFromLocalFile("src/main/resources/combineFileWithPageRangeInput1.pdf");
25        PageRanges pageRangesForFirstFile = getPageRangeForFirstFile();
26        // Add the first file as input to the operation, along with its page range.
27        combineFilesOperation.addInput(firstFileToCombine, pageRangesForFirstFile);
28 
29        // Create a second FileRef instance using a local file.
30        FileRef secondFileToCombine = FileRef.createFromLocalFile("src/main/resources/combineFileWithPageRangeInput2.pdf");
31        PageRanges pageRangesForSecondFile = getPageRangeForSecondFile();
32        // Add the second file as input to the operation, along with its page range.
33        combineFilesOperation.addInput(secondFileToCombine, pageRangesForSecondFile);
34 
35        // Execute the operation.
36        FileRef result = combineFilesOperation.execute(executionContext);
37 
38        // Save the result to the specified location.
39        result.saveAs("output/combineFilesWithPageOptionsOutput.pdf");
40 
41      } catch (ServiceApiException | IOException | SdkException | ServiceUsageException ex) {
42        LOGGER.error("Exception encountered while executing operation", ex);
43      }
44    }
45 
46    private static PageRanges getPageRangeForSecondFile() {
47      // Specify which pages of the second file are to be included in the combined file.
48      PageRanges pageRangesForSecondFile = new PageRanges();
49      // Add all pages including and after page 3.
50      pageRangesForSecondFile.addAllFrom(3);
51      return pageRangesForSecondFile;
52    }
53 
54    private static PageRanges getPageRangeForFirstFile() {
55      // Specify which pages of the first file are to be included in the combined file.
56      PageRanges pageRangesForFirstFile = new PageRanges();
57      // Add page 1.
58      pageRangesForFirstFile.addSinglePage(1);
59      // Add page 2.
60      pageRangesForFirstFile.addSinglePage(2);
61      // Add pages 3 to 4.
62      pageRangesForFirstFile.addRange(3, 4);
63      return pageRangesForFirstFile;
64    }
65  }
Hitesh Kumar
Last updated 4/9/2024
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