Merge PDF to PNG via Java
Merge PDF documents into single formats PNG. Use Aspose.PDF for Java to modify files programmatically
Merge PDF to PNG Using Java
How to merge PDF to PNG? With Aspose.PDF for Java library you can easily merge PDF to PNG programmatically. PDF software from Aspose is ideal for individuals, and small or large businesses. Since it is able to process a large amount of information, perform the concatenation quickly and efficiently and protect your data. A peculiar feature from Aspose.PDF is an API for merging PDF to PNG.
You can download its latest version directly from Maven and install it within your Maven-based project by adding the following configurations to the pom.xml.
Check the details of Installing the Library on the Documentation pages. To verify the benefits of the library, try using the conversion PDF to PNG code snippet.
Repository
<repository>
<id>AsposeJavaAPI</id>
<name>Aspose Java AP</name>
<url>https://releases.aspose.com/java/repo/</url>
</repository>
Dependency
<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-pdf</artifactId>
<version>version of aspose-pdf API</version>
</dependency>How to merge PDF to PNG via Java
Java developers can easily load & merge PDF files to PNG in just a few lines of code.
- Initialize a new Document, and run a loop for merging files
- In loop: add a new page to PNG document
- In loop: add PDF file to new page
- After the loop save the result
Here is an example that demonstrates how to merge PDF to PNG in Java. Combine multiple documents into a single file with ease. If you are developing code in Java, this task can be simpler than it sounds. You can use fully qualified filenames for both PDF reading and PNG writing. Check out this Java example that show how to merge multiple documents of either the same or different file types into one file using Java
Merge PDF files using Java and save as PNG
Example Java: this sample code shows PDF to PNG concatenation
Input file:
File not added
File not added
Output format:
Output file:
// create empty image with calculated width and hight
// use file system as source for save image
fileSource = new com.aspose.imaging.sources.FileCreateSource(
"Merger_pdf_png.png",
false);
options = new com.aspose.imaging.imageoptions.PngOptions();
options.setSource(fileSource);
newImage = (com.aspose.imaging.fileformats.png.PngImage) com.aspose.imaging.Image.create(options, newWidth, newHeight);
int stitchedWidth = 0;
// read pdf file to Aspose Document
doc = new com.aspose.pdf.Document("1.pdf");
// setup default resolution to pdf documents 72dpi
// create image device to save document as image with page dimensions and resolution
// process document page to image
// create bounds to nsert small image into large
for (int pageCount = 1; pageCount <= doc.getPages().size(); pageCount++) {
resolution = new com.aspose.pdf.devices.Resolution(72);
imageDevice = new com.aspose.pdf.devices.PngDevice(
doc.getPages().get_Item(pageCount).getPageInfo().getWidth(),
doc.getPages().get_Item(pageCount).getPageInfo().getHeight(),
new com.aspose.pdf.devices.Resolution(72));
String outPath = "test_" + pageCount + ".png";
imageDevice.process(doc.getPages().get_Item(pageCount), outPath);
image = (com.aspose.imaging.RasterImage) com.aspose.imaging.Image.load(outPath);
bounds = new com.aspose.imaging.Rectangle(
stitchedWidth,
0,
image.getWidth(),
image.getHeight());
//combining images into new one
newImage.saveArgb32Pixels(bounds,image.loadArgb32Pixels(image.getBounds()));
stitchedWidth += image.getWidth();
}
// save created image to disk
newImage.save();