Discussion
Areteans
Areteans
IN
Areteans
Posted: Jun 28, 2018
Last activity: Feb 3, 2021
Last activity: 3 Feb 2021 14:15 EST
Convert any type of Image to PDF
Hi All,
Below is the code to convert any encoded Base64 Image stream to encoded PDF stream:
It can convert TIFF, JPG, JPEG, PNG, GIF etc.,
//Prepare byte array output stream
java.io.ByteArrayOutputStream outfile = new java.io.ByteArrayOutputStream();
//Create new document
com.lowagie.text.Document document = new com.lowagie.text.Document();
try{
// Get Instance of PDF writer
com.lowagie.text.pdf.PdfWriter writer = com.lowagie.text.pdf.PdfWriter.getInstance(document,outfile);
writer.setStrictImageSequence(true);
// Open the document
document.open();
//TIFF Conversion
if (FileType.equalsIgnoreCase("tif")||FileType.equalsIgnoreCase("tiff"))
{
com.lowagie.text.pdf.RandomAccessFileOrArray ra = new com.lowagie.text.pdf.RandomAccessFileOrArray(Base64Util.decodeToByteArray(attachStream));
// count number of pages in TIFF
int pages = com.lowagie.text.pdf.codec.TiffImage.getNumberOfPages(ra);
for(int i = 0; i< pages;i++)
{
//get each image for TIFF file
com.lowagie.text.Image tiff = com.lowagie.text.pdf.codec.TiffImage.getTiffImage(ra,i+1);
// Scale the Image
float scaler = ((document.getPageSize().getWidth() - document.leftMargin() - document.rightMargin()) / tiff.getWidth()) * 100;
tiff.scalePercent(scaler);
// Add each image to document
document.add(tiff);
}
}
//Other types of images (JPG,JPEG,PNG,GIF etc.,)
else
{
com.lowagie.text.Image jpg = com.lowagie.text.Image.getInstance(Base64Util.decodeToByteArray(attachStream));
//Scale the image
float scaler = ((document.getPageSize().getWidth() - document.leftMargin() - document.rightMargin()) / jpg.getWidth()) * 100;
jpg.scalePercent(scaler);
//Add image to document
document.add(jpg);
}
document.close();
String pdfStream = Base64Util.encodeToString(outfile.toByteArray());
ConvertedStream = pdfStream;
outfile.flush();
}catch(Exception e){
//e.printstacktrace();
}
Posted: 3 years ago
Virtusa
Virtusa
US
Can you please guide from where we can get this library (com.lowagie.text.XXXXX) and what are the licensing options for it. Can it be freely used?
Appreciate your time and response.
Best,
Amit
Posted: 3 years ago
GovCIO
GovCIO
US
Hi Amit,
Pls follow the steps mentioned in the attached image and you will be fine. itextpdf is the API to be used for this exercise and was called as lowagie API earlier. Hope you got the point now.
Thanks,
Ravi Kumar Pisupati.
Posted: 3 years ago
Virtusa
Virtusa
US
@Ravi Kumar Pisupati thank you Ravi. this is indeed helpful.