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MNT-25047 improved pdfimage for grayscale tiff images

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bsayan2
2026-02-02 12:27:31 +05:30
parent 82d2897790
commit 9857db0dae
1 changed files with 12 additions and 1 deletions
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engines/misc/src/main/java/org/alfresco/transform/misc/transformers/ImageToPdfTransformer.java
+12 -1
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@@ -34,6 +34,7 @@ import static org.alfresco.transform.common.RequestParamMap.PDF_FORMAT;
import static org.alfresco.transform.common.RequestParamMap.PDF_ORIENTATION;
import static org.alfresco.transform.common.RequestParamMap.START_PAGE;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
@@ -160,7 +161,17 @@ public class ImageToPdfTransformer implements CustomTransformerFileAdaptor
private void scaleAndDrawImage(final PDDocument pdfDocument, final BufferedImage bufferedImage, final String pdfFormat, final String pdfOrientation, final Map<String, Integer> resolution)
throws IOException
{
final PDImageXObject image = LosslessFactory.createFromImage(pdfDocument, bufferedImage);
BufferedImage improvedImage = null;
if (BufferedImage.TYPE_BYTE_GRAY == bufferedImage.getType())
{
improvedImage = new BufferedImage(bufferedImage.getWidth(), bufferedImage.getHeight(), BufferedImage.TYPE_INT_RGB);
Graphics2D graphics = improvedImage.createGraphics();
graphics.drawImage(bufferedImage, 0, 0, null);
graphics.dispose();
}
PDImageXObject image = LosslessFactory.createFromImage(pdfDocument, improvedImage != null ? improvedImage : bufferedImage);
int imageWidth = image.getWidth();
int imageHeight = image.getHeight();