使用 itext 在 Java 中将 Tiff 转换为 Pdf
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Convert Tiff to Pdf in java using itext
提问by byreddy
I am using the below code for converting tiff to pdf It works fine for tiff images of dimensions 850*1100.But when I am trying to give the input tiff image of dimensions(Eg :- 1574*732, 684*353 or other 850*1100), I am getting the below error. Please help me how to convert tiff images of different dimensions to pdf.
我正在使用以下代码将 tiff 转换为 pdf 它适用于尺寸为 850*1100 的 tiff 图像。 *1100），我收到以下错误。请帮助我如何将不同尺寸的 tiff 图像转换为 pdf。
Error Occured for below code .Compression JPEG is only supported with a single strip. This image has 45 strips.
以下代码发生错误。压缩 JPEG 仅支持单个条带。此图像有 45 条。
RandomAccessFileOrArray myTifFile = null;
com.itextpdf.text.Document tiffToPDF= null;
PdfWriter pdfWriter = null;
try{
myTifFile = new RandomAccessFileOrArray(fileName);
int numberOfPages = TiffImage.getNumberOfPages(myTifFile);
tiffToPDF = new com.itextpdf.text.Document(PageSize.LETTER_LANDSCAPE);
String temp = fileName.substring(0, fileName.lastIndexOf("."));
pdfWriter = PdfWriter.getInstance(tiffToPDF, new FileOutputStream(temp+".pdf"));
pdfWriter.setStrictImageSequence(true);
tiffToPDF.open();
for(int tiffImageCounter = 1;tiffImageCounter <= numberOfPages;tiffImageCounter++)
{
Image img = TiffImage.getTiffImage(myTifFile, tiffImageCounter);
img.setAbsolutePosition(0,0);
img.scaleToFit(612,792);
tiffToPDF.add(img);
tiffToPDF.newPage();
}
}
回答by Deepanshu J bedi
This code will explain how you can convert tiff to pdf.. more information can be found hereand here
此代码将解释如何将 tiff 转换为 pdf .. 可以在此处和此处找到更多信息
import com.itextpdf.text.pdf.RandomAccessFileOrArray;
//Read Tiff File, Get number of Pages
import com.itextpdf.text.pdf.codec.TiffImage;
//We need the library below to write the final
//PDF file which has our image converted to PDF
import java.io.FileOutputStream;
//The image class to extract separate images from Tiff image
import com.itextpdf.text.Image;
//PdfWriter object to write the PDF document
import com.itextpdf.text.pdf.PdfWriter;
//Document object to add logical image files to PDF
import com.itextpdf.text.Document;
public class TiffToPDF {
public static void main(String args[]){
try{
//Read the Tiff File
RandomAccessFileOrArray myTiffFile=new RandomAccessFileOrArray("c:\java\test.tif");
//Find number of images in Tiff file
int numberOfPages=TiffImage.getNumberOfPages(myTiffFile);
System.out.println("Number of Images in Tiff File" + numberOfPages);
Document TifftoPDF=new Document();
PdfWriter.getInstance(TifftoPDF, new FileOutputStream("c:\java\tiff2Pdf.pdf"));
TifftoPDF.open();
//Run a for loop to extract images from Tiff file
//into a Image object and add to PDF recursively
for(int i=1;i<=numberOfPages;i++){
Image tempImage=TiffImage.getTiffImage(myTiffFile, i);
TifftoPDF.add(tempImage);
}
TifftoPDF.close();
System.out.println("Tiff to PDF Conversion in Java Completed" );
}
catch (Exception i1){
i1.printStackTrace();
}
}
}
