[PDFBOX-2203] java.lang.IllegalArgumentException: alpha value out of range

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: Rendering
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 12/Jul/14 12:17
• Updated: 31/Aug/16 18:25
• Resolved: 12/Jul/14 12:21

Description

I get this with the attached file:

java.lang.IllegalArgumentException: alpha value out of range
	at java.awt.AlphaComposite.<init>(AlphaComposite.java:624)
	at java.awt.AlphaComposite.getInstance(AlphaComposite.java:689)
	at org.apache.pdfbox.pdmodel.graphics.blend.BlendComposite.getInstance(BlendComposite.java:45)
	at org.apache.pdfbox.pdmodel.graphics.state.PDGraphicsState.getStrokeJavaComposite(PDGraphicsState.java:577)
	at org.apache.pdfbox.rendering.PageDrawer.strokePath(PageDrawer.java:939)
	at org.apache.pdfbox.util.operator.pagedrawer.StrokePath.process(StrokePath.java:37)

The file has a CA and ca of 1.005 in ExtGState which is incorrect.
I will fix this by clipping the alphaConstant to a 0..1 interval and put out a warning.

Issue Links

• is related to: PDFBOX-3477 CA and ca values should be clipped