You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@pdfbox.apache.org by "Darren Croft (JIRA)" <ji...@apache.org> on 2018/01/14 04:28:00 UTC
[jira] [Commented] (PDFBOX-2104) Implement transparency groups
[ https://issues.apache.org/jira/browse/PDFBOX-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16325440#comment-16325440 ]
Darren Croft commented on PDFBOX-2104:
--------------------------------------
I'm trying to create a pdf with images with rounded corners. It looks like transparency groups are what I need, but I can't find any documentation on it. Is there sample code here somewhere that created the test pdf?
> Implement transparency groups
> -----------------------------
>
> Key: PDFBOX-2104
> URL: https://issues.apache.org/jira/browse/PDFBOX-2104
> Project: PDFBox
> Issue Type: Improvement
> Components: Rendering
> Affects Versions: 2.0.0
> Reporter: Petr Slaby
> Assignee: John Hewson
> Labels: transparency
> Fix For: 2.0.0
>
> Attachments: 000001_MTEXT_CS6.pdf, TransparencyGroups.1.patch, TransparencyGroups.2.patch, TransparencyGroups.3.patch, TransparencyGroups.patch
>
>
> The attached PDF uses transparency groups, blending and soft masks to create the rounded corners and shades behind images. It appears that these features are not implemented in PDFBox. An implementation proposal is attached in the TransparencyGroup.patch. The basic idea is to create a buffered image, draw the transparency group content onto it and then use the result to produce the soft mask or draw the image on the original g2d.
> Note: I am not the (only) author of the proposed change. It was developed in our company few years ago in sources based on a 1.7.x version of PDFBox, mostly by a guy who already left. Over the years, merging of the work done in PDFBox main stream into our source base has become impossible due to many refactorings and other deep going changes done. Now we would like to go the opposite way - where possible - bring the changes and fixes we have done into PDFBox main stream and start to use it in our installations.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@pdfbox.apache.org
For additional commands, e-mail: dev-help@pdfbox.apache.org