The service release fixes a bug in the PrintTextEx method responsible for not properly handling "dingbat" fonts such as wingding.ttf and others. The use of such fonts in previous versions would produce black boxes instead of characters. The bug seems to have been introduced in version 2.2.

The service release contains a major and important addition: support for the Google WEBP image format, both as input and output. WEBP is a modern format that combines all the best features of JPEG, PNG and GIF formats, such as lossy and lossless compression, animation and alpha channels, while producing image files that are significantly smaller that those saved in the traditional formats.

For more information about AspJpeg's newly added WEBP support, see these section of the manual:

• 2.1 Thumbnail-Creating Steps;
• 4.5 Adjusting Image Compression;
• 6.3 PNG & WEBP Alpha Channel;
• 10.1 PNG & WEBP Format Overview.

Another major feature is support for EXIF and IPTC metadata extraction from PNG files, added to the OpenInfo method. In previous versions, metadata extraction was limited to JPEG images.

The service release fixes a serious bug in the PrintTextEx method when the Jpeg.Canvas.Font.Underlined property is set to True and Jpeg.Canvas.Font.Align property set to 1 (right) or 2 (center):

Before:

Now:

The service release also fixes a number of minor bugs in various modules.

Apr 27, 2017 - AspJpeg.NET Beta Released

We have released the native .NET version of AspJpeg. Functionality-wise, the new product, aptly named AspJpeg.NET, is almost identical to AspJpeg, but differs from it slightly in the object model and implementation of certain features.

AspJpeg.NET has its own dedicated web site with its own user manual, object reference and live demo sections. The web site's address is, predictably, www.aspjpeg.net.

AspJpeg.NET is now in beta. For more information, and to download the free evaluation version, please visit www.aspjpeg.net. We are standing by for your questions and problem reports.

In response to your numerous requests, we have added the ability to set and modify EXIF tags in a JPEG image. The new method ChangeExifTag allows you to assign any EXIF tag, such as Artist, Image Unique ID, or GPS coordinates, to an image even if the image had no EXIF data block to begin with. This functionality is described in detail in Section 7.8 - EXIF Editing. It is also demonstrated by Live Demo #9.

We have also added the method ApplyOrientation which rotates and/or flips the image based on the embedded EXIF tag Orientation, and then resets this tag to the default value of 1. This makes the image viewable in a consistent manner across all image viewers and platforms. For more info, see Section 7.8 - EXIF Editing, sub-section 7.8.2.

Finally, AspJpeg is now capable of saving images in BMP format, in addition to JPEG, PNG and GIF. Set the new property OutputFormat to 2 to save an image as a bitmap.

Dec 07, 2015 - Version 2.8 with 3D Surface Mapping Released

The new version offers the following features and fixes:

• AspJpeg 2.8 allows an image to be stretched onto an arbitrary 3D surface such as a sphere, plane, cylinder, cone, etc. via a new PdfCanvas.DrawImageUV method. This feature is useful, among other things, for creating the images of promotional items such as coffee mugs, baseball caps, pens, etc. with custom logos or photographs wrapped around them in a realistic way. A whole new chapter has been added to the User Manual to describe this functionality in detail.

  

  For more information about this exciting feature, see Chapter 11 - 3D Surface Mapping.

• A new Live Demo #8 has been added to demonstrate the new 3D functionality: have your own image wrap around a coffee mug.

• A bug has been fixed in the GIF resizing module that was responsible for poor-quality GIF thumbnails with certain dimensions (such as those divisible by 100.)

• A bug has been fixed that caused a crash with certain rare TIFF images.

Upgrading is free for registered users.

Jan 24, 2014 - 2.7.0.5 Service Release Available

The service release offers the following features:

• Support for Adobe XMP. Many JPEG images include metadata in XML format in accordance with Adobe's Extensible Metadata Platform specifications. As of this service release, AspJpeg is capable of retrieving and specifying the XMP data in its entirety as if it were a regular metadata item.

  The new feature is described in detail in Section 7.7 - Adobe XMP Support of the user manual.

• Better BMP support. AspJpeg's BMP module has been enhanced to handle BMP images with negative heights. Previous versions would usually crash when encountering such images. Also, support for compressed bitmaps has been added.

Dec 04, 2013 - 2.7.0.4 Service Release Available

Service release 2.7.0.4 adds support for TIFF images compressed with Adobe-style Flate (or "Deflate") encoding. Previous versions, when encountering such TIFF images, would throw the exception

TIFF compression type 8 is not supported.

This service release also fixes a bug in the EXIF extraction module causing Windows Explorer-related metadata fields such as WinAuthor and WinTitle to be displayed incorrectly on some JPEG images: only the first character of the text value would be displayed instead of the entire text.

Oct 22, 2013 - 2.7.0.3 Service Release Available

The service release contains an important enhancement to the DrawPNG and DrawPNGBinary methods. When drawing a PNG image containing an alpha channel, the new version takes into account not only the alpha channel of the image being drawn but also the alpha channel of the background image as well. This helps achieve a proper blending effect similar to Photoshop layer merging. Previous versions would ignore the alpha channel of the background image altogether:

Previous Versions	New Version

The DrawPNG method is demonstrated by Live Demo #6 - Logo Stamping.

Aug 05, 2013 - 2.7.0.2 Service Release Available

AspJpeg's TIFF decompression engine has been enhanced to include support for CCITT Group 3-2D compression (often referred to as CCITT G32D). This relatively rare variation of the CCITT compression is found in the duotone TIFF images of scanned or faxed documents.

Previous versions would display the error

TIFF images with the T4Options value of 5 are not supported.

when encountering G32D-compressed TIFFs.

Jul 30, 2013 - 2.7.0.1 Service Release Available

A bug in the OpenBinary method responsible for the error

Invalid JPEG file structure: two SOI markers

occurring on certain corrupt or truncated images has been fixed. This bug did not affect the Open method.

Also, an enhancement has been made in the EXIF extraction module: metadata items in a decimal format, such as GPS coordinates, are now returned with more decimal places for better accuracy.

Mar 04, 2013 - AspJpeg 2.7 Released

The new version implements the method FlattenAlpha which greatly simplifies the conversion of PNG images with alpha channels to JPEG format. This method applies the alpha channel to the image's pixels in combination with the specified background color and then removes the alpha channel, thus effectively "flattening" the image:

The new version also enhances the TIFF processing module by adding support for TIFF images employing JPEG compression, and also TIFF images with a non-standard "Planar Configuration" parameter.

Version 2.6 implements several common image filters, including Gaussian blur, contrast, brightness, edge detection and others, via the method ApplyFilter. This new feature is described in Section 8.6 of the User Manual.

The new version also implements the Chroma Key effect via the method DrawImageChromaKey. It allows the monochromatic background of an image to be removed and replaced with another image.

This new feature is described in Section 8.7 of the User Manual.

Version 2.5 enables a perspective transformation to be applied to an image rendered with the DrawImage method. This new feature is described in Section 6.4 of the User Manual.

The new version supports image rotation by an arbitrary angle via the method Rotate. Previous versions only supported 90-degree rotations.

For more information, see Section 10.4 - Using PNG Format for Image Rotation.

As always, upgrading is free for registered users.

Version 2.2 offers the following new features:

• 13 new resizing algorithms. In addition to the 3 standard algorithms already available (nearest-neighbor, bilinear and bicubic), AspJpeg now offers thirteen more high-quality resampling filters to choose from. For the complete list, see Section 4.1 - Resizing Algorithms.

• Thin-border problem fixed in the new algorithms. Images with thin borders do not resize well with algorithms 0, 1 and 2 (bottom and right sides are cut off.) The new 13 algorithms (3 to 15) are free of this problem:

  Original image	Algorithms 0 to 2	Algorithms 3 to 15

• New installers. The new 64-bit installer includes the complete user documentation and code samples. The previous versions of the 64-bit installer only included the DLLs.

• Several minor bugs fixed.

Dec 07, 2009 - AspJpeg 2.1 Released

We are excited to announce the release of AspJpeg 2.1. The new version offers so many new features and enhancements we had to add a whole new chapter to the user manual (as well as expand every other existing chapter) to describe all of them. The new features are:

• PNG Output. Just set the property Jpeg.PNGOutput to True and AspJpeg will save the images in the popular and versatile PNG format. Various routines for alpha channel management have been added as well. Read more about PNG output support in Chapter 10 of the manual.
• Antialiased drawing routines. The Canvas object now supports several new routines that draw/fill smooth-edged lines, polygons and ellipses. In addition to anti-aliasing, these routines also support partial transparency. Read more about it in Section 5.4 of the manual.
• Underlining support in PrintTextEx. In the previous versions, PrintTextEx could not draw underlined text but now it can. Just set the property Font.Underline to True. The color and width of the underline can be specified separately via the Pen.Color and Pen.Width properties.
• Improved metadata management. With the previous versions, it was impossible to remove all IPTC keyword entries from an image, only overwrite the last one. The new version fixes this deficiency with the new special IPTC tag IptcKeywordsRemove. Read more about it in Section 7.6 of the manual.
• Support for 32-bit BMP. Previous versions refused to open 32-bit BMP images but now they are supported.

• Arabic ligature support. The new method Font.ConvertArabic converts a sequence of Arabic characters into ligatures (contextual joining of letters) for easy rendering via PrintTextEx. Read more about it in the Font Object Reference.

Upgrading is free for registered users. Please download AspJpeg 2.1 and start enjoying the new features immediately.

Added Dec 10, 2009 -- in the rush to release AspJpeg 2.1, we skipped the PNG alpha channel support in the Crop, Flip and Rotate methods. Service release 2.1.0.1 fixes this unfortunate omission.

Oct 27, 2009 - AspJpeg 2.1 Beta Released

AspJpeg 2.1 supports PNG output, antialiased drawing and many other features you have asked for.

The new service release offers the following enhancements in the JPEG Metadata functionality:

• The AddMetadataItem method can now be used to add multiple keyword entries to an image's IPTC metadata. Previous versions could only insert a single keyword entry, or replace an existing one. For more info, click here.
• The GPS Latitude and Longitude EXIF tags return more precise values. Previous versions ignored the decimal portions of the degree/hour/minute components.
• Support for Nikon's non-standard way to store the ISO data added. Previous versions could not extract the "ISOSpeedRatings" EXIF tag from images created by certain Nikon cameras.

The new release also offers support for OS/2-style monochrome bitmaps, and fixes several minor bugs.

Feb 25, 2008 - 64-bit AspJpeg Updated

After receiving several reports of the 64-bit version of AspJpeg crashing with the error code c0000005 coming from Server.CreateObject, we traced the problem to an incorrect compile option. The aspjpeg64.dll library has been recompiled.

Jan 28, 2008 - AspJpeg 2.0 Released

AspJpeg 2.0 offers the following new features:

• GIF output. AspJpeg is no longer limited to JPEG output. GIF creation with animation and transparency support is now available as well. For detailed documentation, go to Chapter 9 of the user manual.
• Metadata editing. Previous versions could only retrieve but not edit metadata. With AspJpeg 2.0, IPTC tags can also be added and edited. For more information, see Section 7.6 of the Metadata chapter.
• New drawing methods. To enhance drawing capabilities, the Canvas object now offers new methods DrawPie, DrawRoundRect and DrawQuad.

Upgrades are free for registered users. Your existing registration key will be recognized by this version.

Dec 18, 2007 - AspJpeg 2.0 Beta 2 Released

AspJpeg 2.0 offers the following new features: GIF output, Metadata editing, and several new drawing methods.

Dec 11, 2007 - AspJpeg 2.0 Beta Released with GIF Output

AspJpeg 2.0 offers full GIF output support described in Chapter 9 of the user manual. New functionality includes GIF resizing, animation and transparency management, JPEG-to-GIF conversion, palette management, and more.

The beta version of AspJpeg 2.0 is now available for public testing. We are looking forward to your comments and feature requests.

Aug 17, 2007 - 64-bit AspJpeg Released

The native 64-bit version of AspJpeg is now officially released. Download the 64-bit installer here.

Jul 26, 2007 - 64-bit AspJpeg on Sale

Permanent registration keys for the 64-bit version of AspJpeg can now be purchased. For licensing purposes, AspJpeg (64-bit) is a totally separate product. Your existing 32-bit keys cannot be used with the 64-bit version.

A full installer for AspJpeg (64-bit) will be available shortly. Meanwhile, the library file aspjpeg64.dll must be manually registered on your 64-bit Windows server. It can be downloaded here.

Version 1.9 offers the following new features:

• When creating thumbnails, AspJpeg 1.9 is capable of preserving the Exif and IPTC metadata of the original image. To enable this functionality, set the new property PreserveMetadata to True before opening the image. For more information on metadata, see Chapter 7.

• A new read-only property Canvas.ParagraphHeight has been added which returns the height (in pixels) of the last text paragraph rendered by PrintTextEx. This simplifies the calculation of coordinates when multiple consecutive text paragraphs need to be rendered.

• To facilitate saving thumbnails to a remote drive, the LogonUser method has been added for admin account impersonation.

• A bug in the DrawImage method has been fixed which prevented CMYK images to be drawn correctly on top of other CMYK images.

May 01, 2007 - Service Release 1.8.0.2 Available

• Support for Unicode characters in file paths and names added.
• Support for 1-bit and 4-bit BMP images added.

Mar 13, 2007 - 64-bit AspJpeg Beta Released

The native 64-bit version of AspJpeg is now available for testing. Download the zip file containing AspJpeg64.dll and evaluation instructions here.

Note that existing 15-digit registration keys do not work with the 64-bit version. For evaluation purposes, use the key included in the instruction file.

Feb 05, 2007 - User Manual Revised

For better organization of information and to trim down a few overbloated chapters of the User Manual, we have introduced a new chapter dedicated entirely to drawing images on top of other images.

The new Chapter 6 - Picture-in-Picture is composed of sections moved from other chapters. Former Chapter 6 (Metadata Extraction) is now Chapter 7, and former Chapter 7 (Miscellaneous Features) is now Chapter 8.

Jan 23, 2007 - AspJpeg 1.8 Released

Version 1.8 offers the following new features:

• PrintTextEx, a more versatile alternative to the PrintText method, has been added. The new method supports high-quality text anti-aliasing on any background, word wrapping, text alignment, and adjustable opacity and line spacing. A font is specified by a physical path so it does not have to be properly registered on the system. Both TrueType/OpenType and Type 1 fonts are supported. Note: text opacity was added on Jan 25, 2007 as a service release 1.8.0.1).

  

  For more information about this new method, see Section 5.3 - Advanced Text Drawing with PrintTextEx.

• The DrawPNG method introduced in the previous release has been enhanced to support GIF format as well as PNG. Now all GIF images with transparency can be rendered correctly.

• A new Jpeg.WindowsDirectory property has been introduced to help compute the physical path to font files required by the new PrintTextEx method.

Jan 15, 2007 - AspJpeg 1.7.0.1 Released

This service release fixes a bug in the New method which caused the default image resolution to be set incorrectly. Also fixes a bug in the DrawPNG method which caused the newly set Width and Height properties to be ignored.

Nov 10, 2006 - AspJpeg 1.7 Released

Version 1.7 offers the following new features:

• Support for PNG alpha channel via the new DrawPNG method to provide smooth blending when a smaller picture in PNG format is "stamped" over a larger image:

  

  For more information, see Section 6.3 - PNG Alpha Channel.

• SaveUnique method which works the same was as Save but generates a unique filename to avoid overwriting an existing file. Click here for more information.

• Adjust method which enables the adjustment of brightness, contrast and saturation of an image. For more information, see Section 8.5 - Brightness, Contrast and Saturation.

• When the Crop method creates margins around an image, the margin color can now be specified via the Canvas.Brush.Color property. In older versions, the margin color was always white and could not be easily changed. For more information, see Section 4.3 - Image Cropping.

Version 1.6 offers the following new features:

• Access to GIF transparency color information via the properties TransparencyColorExists and TransparencyColor.
• The ability to replace a given color with any other color via the method ReplaceColor.
• Sepia filter which makes your images look like old photographs:

   

Aug 24, 2005 - AspJpeg 1.5.0.1 Released

This service release fixes a bug in the Pixels property which may cause pixel colors to be set incorrectly. This bug only affects put_Pixels but not get_Pixels.

Version 1.5 offers the following new features:

• CMYK-to-RGB conversion via the ToRGB method. You can now create Web-viewable RGB thumbnails from CMYK images in JPEG and TIFF formats. To achieve good color reproduction, ToRGB uses International Color Consortium's color space conversion schemes commonly known as ICC Profiles.
• Ability to obtain the number of color components of an image via the property OriginalComponents. This property returns 1 for grayscale, 3 for RGB, and 4 for CMYK images.
• Ability to retrieve and set image resolution. The original image resolution can be obtained via the properties OriginalResolutionX and OriginalResolutionY. To set a new resolution, use the properties ResolutionX and ResolutionY.
• Read/write access to individual pixels of an image via the default property Pixels(x, y). This property allows you to set or retrieve the array of color components for a given pixel.
• Support for progressive JPEGs via the property Progressive.

For more information on these new features, see Chapter 8 of the user manual. Upgrades are free for registered users. Your existing registration key will be recognized by this version.

Aug 13, 2004 - AspJpeg 1.4 Released

Version 1.4 offers the following new features:

• TIFF support. In addition to JPEG, GIF, BMP and PNG formats, AspJpeg now supports Tagged Image File Format (TIFF) widely used in document imaging and digital photography. A variety of compression algorithms and color spaces are supported, as well as multi-image TIFFs.
• EXIF and IPTC support. You can now extract various pieces of information embedded in JPEG images by the digital camera, such as shutter speed or metering mode. You can also access text metadata inserted by Photoshop, such as image title, copyright information, etc.
• Grayscale method added which turns color images into B&W.
• New method added to create blank images of arbitrary size and background.
• Canvas.GetTextExtent method added to calculate the width of text strings to be drawn. This feature is useful for text alignment and positioning purposes.
• Font.Quality property added to control text anti-aliasing.
• OriginalFormat property added returning a 3-letter image format code such as "BMP" or "TIF".
• PreserveAspectRatio property added. When this property is set to True, changing the width or height of an image automatically adjusts the other dimension to preserve the original aspect ratio of the image.
• The Canvas methods Arc, Bar, Circle, Ellipse and Line are renamed into DrawArc, DrawBar, DrawCircle, DrawEllipse and DrawLine, respectively. The old method names are still supported for backwards compatibility.

Upgrades are free for registered users. Your existing registration key will be recognized by this version.

Aug 12, 2004 - AspJpeg.com Web Site Launched

Since our image management component has amassed so many features recently, we figured it was time for it to have its own dedicated web site, just like all other major Persits Software products.

This web site is also your user manual. Here you can find all the information necessary to have AspJpeg up and running in no time:

• User Manual describes the features AspJpeg has to offer.
• Object Reference documents the properties and methods of all objects.
• Live Demo demonstrates key features interactively online.

Advanced Image Management for ASP and .NET

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