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https://issues.apache.org/jira/browse/PDFBOX-4974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17214106#comment-17214106
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Robert Fink edited comment on PDFBOX-4974 at 10/14/20, 6:04 PM:
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If we look at the parent class javafx.scene.image.Image there is a constructor 
Image​(InputStream is) beside of the constructor Image​(String url).

The class java.io.InputStream has a method read​(byte[] b) to work with a byte 
array.

This is possible too:
{code:java}
// Concept of working with a byte array
int writableImageBufferSize = (width * height) * bandCount;
byte[] writableImageBuffer = new byte[writableImageBufferSize];
InputStream​ is = new InputStream​();
is.read(writableImageBuffer);
Image image = new Image​(is);
{code}


was (Author: robertoni):
If we look at the parent class javafx.scene.image.Image there is a constructor 
Image​(InputStream is) beside of the constructor Image​(String url).

The class java.io.InputStream has a method read​(byte[] b) to work with a byte 
array.

This is possible too:
{code:java}
// Concept of working with a byte array
int writableImageBufferBufferSize = (width * height) * bandCount;
byte[] writableImageBuffer = new byte[writableImageBufferBufferSize];
InputStream​ is = new InputStream​();
is.read(writableImageBuffer);
Image image = new Image​(is);
{code}

> PDImageXObject based on WritableImage
> -------------------------------------
>
>                 Key: PDFBOX-4974
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4974
>             Project: PDFBox
>          Issue Type: New Feature
>          Components: PDModel
>    Affects Versions: 2.0.0
>            Reporter: Robert Fink
>            Priority: Major
>              Labels: javafx
>
> The goal is to work with a WritableImage from JavaFX in addition to a 
> BufferedImage from Swing.
> My proposal for a new feature are the following. 
> To extend the factory classes:
>  - CCITTFactory by the method:
>  createFromImage(PDDocument document, WritableImage image)
>  - JPEGFactory by the methods:
>  createFromImage(PDDocument document, WritableImage image)
>  createFromImage(PDDocument document, WritableImage image, float quality)
>  createFromImage(PDDocument document, WritableImage image, float quality, int 
> dpi)
>  - LosslessFactory by methods:
>  createFromImage(PDDocument document, WritableImage image)
> To extend the PDImageXObject class:
>  * by the methods:
> getWritableImage()
> getWritableImage(Rectangle region, int subsampling)
> Until now there is a need to use the class SwingFXUtils to do the conversion 
> from WritableImage to BufferedImage or vice versa.
>  This new feature should come in handy for all JavaFX developers.



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