[
https://issues.apache.org/jira/browse/PDFBOX-4530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16830483#comment-16830483
]
amiladi commented on PDFBOX-4530:
---------------------------------
Thanks for the hint.
Changing the exported image type to gray seems to fix the problem of the
horizontal white lines.
After testing the rendering hints, the default ones seem to work fine, since
the antialias is enabled by default for this kind of files.
I close the issue then.
> PDFRenderer adding horizental white lines to exported image
> -----------------------------------------------------------
>
> Key: PDFBOX-4530
> URL: https://issues.apache.org/jira/browse/PDFBOX-4530
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.15
> Reporter: amiladi
> Priority: Major
> Attachments: PdfBoxTestCase.zip, page-3-1.jpeg, page-3.pdf,
> page-7-1.jpeg, page-7.pdf
>
>
> Hello,
> I started using pdfbox recently to extract a datamatrix code from a pdf file.
> The image extraction works pretty fine.
> We found out that the source of the pdfs is not attaching them neither as
> embedded objects or inline image, the datamatrix is coded in the pdf as black
> squares.
> Then, the idea was to convert the pdf to an image and parse the code.
> Only problem, the conversion sometimes add white lines inside the datamatrix
> which makes the it unparsable (see attachements page-3-1.jpeg and page-3.pdf)
> For some other cases, the datamatrix squares differ in size in the exported
> image while they are the same in the original pdf file (see attachements
> page-7.jpeg and page-7-1.pdf).
> The outcome is the same and the parser is not able to recognize the
> datamatrix content.
> The code I am using to convert to BufferedImage is pretty straightforward
> {code:java}
> BufferedImage bi = new
> PDFRenderer(pdDocument).renderImageWithDPI(i, 600, ImageType.BINARY);
> {code}
>
>
> Is it the way I am using the renderer which causing this problem or simply a
> bug in the software!
>
> I am attaching the test project reproducing the behavior.
>
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
