PDFUtils

Utility methods to convert PDF files. For example, to stamp image or text. 

Methods

merge

Description:

Method	Return values	Description
merge(List inputs, OutputStream output)	void	Merge several PDFs into a new one.

• inputs: List of inputs stream for merge.
• output: Output stream of the file.

Example:

package com.openkm;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.io.IOUtils;

import com.openkm.api.OKMDocument;
import com.openkm.bean.Document;
import com.openkm.util.PDFUtils;
import com.openkm.util.PathUtils;
import com.openkm.util.FileUtils;

public class Test {
  public static void main(String[] args) {
    FileOutputStream fos = null;
    FileInputStream fis = null;
    File tmp = null;
    try {
      List<InputStream> inputs = new ArrayList<InputStream>();
      tmp = FileUtils.createTempFile("pdf");
      fos = new FileOutputStream(tmp);

      inputs.add(OKMDocument.getInstance().getContent(null, "/home/openkm/test1.pdf", false));
      inputs.add(OKMDocument.getInstance().getContent(null, "/home/openkm/test2.pdf", false));

      // Merge document
      PDFUtils.merge(inputs, fos);

      // Create document in repository
      String fldPath = PathUtils.getParent("/home/openkm/test1.pdf"); // all documents are in same path
      String docPath = fldPath + "/docMerge";
      fis = new FileInputStream(tmp);
      OKMDocument.getInstance().createSimple(null, docPath, fis);
    } catch (Exception e) {
      e.printStackTrace();
    } finally {
      IOUtils.closeQuietly(fis);
      IOUtils.closeQuietly(fos);
      FileUtils.deleteQuietly(tmp);
    }
  }
}