Hello everyone !
A 'visible signature' question (iText Java) :
When I use a 500*300 pixels image as signature graphic for a 270*30 points
signature rectangle, the graphic part of the visible signature is not
rendered as expected (by me at least :) ). The image is stuck to the
bottommost/rightmost half of its rectangle instead of being at its center
with balanced margins. Looks like the left margin is too big, and the bottom
margin has disappeared.
In PdfSignatureAppearance's source code, I see :
// must calculate the point to draw from to make image
appear in middle of column
float x = 0;
// experimentation found this magic number to counteract
Adobe's signature graphic, which
// offsets the y co-ordinate by 15 units
float y = -im.getScaledHeight() + 15;
x = x + (signatureRect.getWidth() - im.getScaledWidth()) /
2;
y = y - (signatureRect.getHeight() - im.getScaledHeight()) /
2;
p.add(new Chunk(im, x + (signatureRect.getWidth() -
im.getScaledWidth()) / 2, y, false));
Couldn't the duplicate "x + (signatureRect.getWidth() - im.getScaledWidth())
/ 2" explain the problem on the left margin ?
Also, could anyone explain what is attempted with the "-im.getScaledHeight()
+ 15" offset ?
Thx
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