DjVu Pages to Separate Images, DjVu Conversion to PDF & Multi Frame Raster Format using Java

2024-11-02 09:21:37 Computer

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Aspose development team is pleased to announce the new release Aspose.Imaging for Java 3.0.0. This months release contains many useful improvements including the long awaited support for DjVu file format. DjVu file format is becoming popular as an alternative to PDF because it has smaller file size as compared to PDF. DjVu format can also be considered as a superior alternative to PDF for digital documents, to TIFF for scanned bitonal documents, to JPEG and JPEG2000 for photographs and pictures, and to GIF for large palatalized images. With this release, the API has provided the support for loading DjVu files for possible conversion to raster image formats as well as PDF. In order to provide this support, the API has exposed DjvuImage class along with many new helping classes, methods & properties listed in the Public API Changes in Aspose.Imaging for Java 3.0.0. Like PDF & TIFF, the DjVu files can have multiple pages/frames therefore while converting the DjVu files to raster formats such as TIFF & GIF, all pages of DjVu are rendered to the resultant image by default. It can also be used to convert the DjVu files to PDF format while using the existing PdfOptions class. It is up to the user requirement if all DjVu pages or a subset of the pages are to be exported in PDF format. It has exposed a new class IntRange that can be used to specify a range that in turn can be passed to an instance of DjvuMultiPageOptions for the conversion of specific range of DjVu pages to TIFF or GIF. It is also possible to store each DjVu page to separate raster image. In order to achieve this goal, the latest version has exposed an overload constructor of DjvuMultiPageOptions that could accept an integer value to export the specific page. This mechanism can be extended to render individual DjVu pages to raster formats. Another overload constructor of DjvuMultiPageOptions class can accept an integer value as well as an instance of Rectangle to export a specific portion of DjVu page to raster image format. As always we appreciate your feedback so if you ever have anything to tell us about this release or anything else, please head to the Aspose.Imaging forum for a chat. The main new and improved features added in this release are listed below

Implement the ability to add new draw operations into existing metafile with saving the result
Support for DjVu file format
ISupport of changing contrast/brightness setting and image quality of JPEG image
java.lang.NullPointerException: while loading a DXF file
FrameworkException: Incorrect access to field index, while drawing over EMF
java.awt.HeadlessException while converting WMF to PNG
Converting DxF file to png or tiff, resulting in an empty output file.
Binary Dxf file format support
[Java] Resize image destroys EXIF data
Value offset not word-aligned: 4261403 while validating Aspose.Imaging's generated TIFF with JHOVE
Improve working with GetNearestColorIndex method
BinarizeJPEG test from BlackBox fails. Ethalon and output images have different JpegExifData.
Performance lag while watermarking frames of a large TIFF image
Textual contents do not render while converting the DXF to TIFF
Improve performance of core processing
Improve performance of PNG codec
ImageLoadException: Cannot open an image. The image file format may be not supported at the moment, while loading a certain DXF
ImageLoadException: Cannot open an image. The image file format may be not supported at the moment." while loading a certain DXF
Resize image destroys EXIF data
Specify Jpeg quality while converting BMP to Jpeg

Newly added documentation pages and articles

Some new tips and articles have now been added into Aspose.Imaging for Java documentation that may guide users briefly how to use Aspose.Imaging for performing different tasks like the followings.

- Converting DjVu to TIFF Format: http://www.aspose.com/docs/display/imagingjava/Converting+DjVu+to+TIFF+Format

- Converting Specific Portion of DjVu Page: http://www.aspose.com/docs/display/imagingjava/Converting+Specific+Portion+of+DjVu+Page

Overview: Aspose.Imaging for Java

Aspose.Imaging for Java is an image processing & manipulation component that allows developers to create, edit, draw or convert images in their Java application. It allows developers to convert images to BMP, JPEG, TIFF, GIF, PNG & PSD formats. It draws images using advanced features like Graphics & GraphicsPath. The drawing feature is useful for adding shapes, building up new images or adding watermarks to images. It works well with both web & windows applications. It supports JDK 1.5 & above.

More about Aspose.Imaging for Java

- Homepage of Aspose.Imaging for Java: http://www.aspose.com/java/imaging-component.aspx

- Download Aspose.Imaging for Java: http://www.aspose.com/community/files/72/java-components/aspose.imaging-for-java/default.aspx

- Online documentation Aspose.Imaging for Java: http://www.aspose.com/docs/display/imagingjava/Home

- Demos of Aspose.Imaging for Java: http://www.aspose.com/demos/.net-components/aspose.imaging/default.aspx

- Post technical questions/queries to Aspose.Imaging for Java Forum: http://www.aspose.com/community/forums/aspose.imaging-product-family/498/showforum.aspx

- Receive notifications about latest news and supported features by subscribing to Aspose.Imaging for Java blog: http://www.aspose.com/blogs/aspose-products/aspose.imaging-product-family.html

Contact Information
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Suite 163, 79 Longueville Road
Lane Cove, NSW, 2066
Australia
http://www.aspose.com/
sales@aspose.com
Phone: 888.277.6734
Fax: 866.810.9465