https://bz.apache.org/bugzilla/show_bug.cgi?id=61112
Bug ID: 61112
Summary: Ppt background is black when using Apache POI to
convert slide to image
Product: POI
Version: unspecified
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: HSLF
Assignee: dev@poi.apache.org
Reporter: nanoticket2...@hotmail.com
Target Milestone: ---
Created attachment 35001
--> https://bz.apache.org/bugzilla/attachment.cgi?id=35001&action=edit
ppt slide and generated image
I am using the below code to convert ppt slides to image.
BufferedImage imBuff = new BufferedImage(pgsize.width, (pgsize.height) *
slides.size(), BufferedImage.TYPE_INT_RGB);
Graphics g = imBuff.getGraphics();
Graphics2D graphics = img.createGraphics();
graphics.setRenderingHint(Drawable.FONT_MAP, fontMap);
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
graphics.setRenderingHint(RenderingHints.KEY_RENDERING,
RenderingHints.VALUE_RENDER_QUALITY);
graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BICUBIC);
graphics.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
RenderingHints.VALUE_FRACTIONALMETRICS_ON);
graphics.setPaint(TRANSPARENT);
graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
slides.get(i).draw(graphics);
g.drawImage(img, 0, i * (pgsize.height), null);
For some .ppt files, the background appears as black. Does anyone know what is
the reason and how to fix this? I suspect that the office software used to
create the .ppt files might be a factor, but I am not able to confirm.
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