OptiPNG 0.6.5
A PNG optimizer that recompresses image files to a smaller size, without losing any information
| Details |
Size: 137 KB
License: Freeware Free
OS: Windows All
Publisher: Cosmin Truta
|
Date added: 26/01/2011
Date updated: 26/01/2011
Total Downloads: 6
|
|
OptiPNG 0.6.5 Publisher's description
OptiPNG will also help you convert external formats (GIF, PNM, BMP, and TIFF) to optimized PNG, and will perform PNG integrity checks and corrections.
The main purpose of OptiPNG is to optimize PNG files, i.e. to reduce their size to a minimum, without losing any information.
In order to achieve this goal, OptiPNG performs the following tasks:
* OptiPNG losslessly reduces the bit depth, the color type and the color palette of the image. This step reduces the size of the uncompressed image, which, indirectly, reduces the size of the compressed image (i.e. the size of the PNG file).
* OptiPNG runs a suite of compression methods and strategies and selects the parameters that yield the smallest output file.
* OptiPNG concatenates all the IDAT data in a single chunk, minimizing the overhead incurred by chunk headers and CRCs.
In addition, OptiPNG has the following capabilities:
* OptiPNG offers a suite of optimization level presets. Given the number of trials that the user is willing to run, these presets will select the range of compression parameters that are most likely to yield the smallest output.
* OptiPNG offers a high degree of freedom to advanced users who can choose among many kinds of compression parameters. The optimization level presets and the custom compression parameters may be used in any combination.
* OptiPNG allows advanced users to disable certain image reductions.
* OptiPNG corrects integrity errors found in the input files. Bad CRCs, invalid data in ancillary chunks, incomplete PNG files, or extraneous data in IDAT, are examples of such integrity errors.
* OptiPNG recognizes several external file formats:
* BMP
The reading capabilities are limited to uncompressed BMP files. This is not a big problem, since few programs produce compresses BMPs. On the other hand, it is easy to uncompress a BMP file, by opening it in a BMP processing program (such as MS Paint), and re-saving it uncompressed.
* GIF
All static (i.e. non-animated) GIF images are supported. OptiPNG preserves the transparency information, but it does not preserve the textual comments embedded in GIFs. Animated GIFs cannot be converted to PNG. Instead, only the first frame is converted, and a warning is issued.
* PNM (PBM, PGM, PPM)
All these Unix-based formats are fully supported by OptiPNG. However, losslessness is only guaranteed when the maximum sample value is one of the following: 1, 3, 7, 15, 255, 65535. (This limitation applies to any PNM-to-PNG format converter, not only to OptiPNG.)
* TIFF
The read support is currently limited to uncompressed TIFF images that are encoded in a PNG-compatible color space (grayscale, RGB or RGBA). Enhanced TIFF support is under development.
|
| Antivirus information |
| Downloadsky has downloaded and tested OptiPNG on 2011-1-26 0:13:21 with some of Today's best antivirus engines and you can find below, for your convenience, the scan results: |
| Kaspersky: | Clean |
| NOD 32: | Clean |
| Bitdefender: | Clean |
|
| NO SPYWARE |
| NO ADWARE |
| NO VIRUSES |
| OptiPNG: does not contain any adware or spyware, certified by download sky. |
|
| Related press releases |
DVDFab 8.0.5.0 Released with New Option and Improvements [2010-11-26 16:31:25] DVDFab products, released by Fengtao Software, are always popular among millions of users from all over the world for their great capability to deal with all DVD/Blu-ray/video issues perfectly and eas... |
| ARYAKA Launches Cloud-Based Application Acceleration And WAN OPTIMIZATION Platform; Raises $14 Million In Funding [2010-11-8 16:46:07] MILPITAS, Calif. – Sept. 21, 2010 – Aryaka Networks (www.aryaka.com), provider of the world’s first cloud-based application acceleration and WAN optimization solution, today announced it has officiall... |
| Photo Optimizer Software, Click-and-go editing for point-and-shoot photos. [A-PDF.com] [2010-7-27 21:50:58] Many people buy big expensive camcorders but still shoot all their videos with their phone or point-and-shoot camera. Photo editing software is similar - you may have a powerful graphics editor but mo... |
| Auslogics Software launches BoostSpeed 5 - a one-stop computer maintenance and optimization tool. [2010-7-6 21:44:31] A one-stop computer maintenance and optimization tool, provides complete solution to keep your computer running fast and smooth.
Sydney, Australia - June 1, 2010 - Auslogics, one of the leading devel... |
| More advanced options and whois servers database update with new SoftFuse Whois 2.6! [2010-6-25 13:09:03] What if you want to get all detailed information about a specific domain name? Administrative, technical or billing contacts of the domain owner, domain's IP, hosting provider, creation date, expirati... |
| ArtistScope Web Encrypt is released as a better html encryption option. [2010-6-24 20:29:55] ArtistScope Web Encrypt is an online page maker and encryption tool for installation onto any web site that has ASP and Access or MS-SQL database support. Create and encrypt new web pages from your we... |
| Debenu Unveil An Optimized PDF SDK, Quick PDF Library 7.19 [2010-5-27 11:05:53] Melbourne, Australia -- May 20, 2010 -- Debenu Unveil An Optimized PDF SDK, Quick PDF Library 7.19
Melbourne, Australia -- March 20, 2010 -- Debenu, the company that created Quick PDF Tools Pro, the ... |
| Optimize your IT expenses with Network Inventory Advisor, the elegant network management software [2009-11-17 10:31:46] Nowadays software and hardware is the most important asset of any company. Due to global economic slowdown many businesses seek optimization of their IT costs and expenses thus looking into more effec... |
| Convert html to bmp, png, jpg and jpeg on Linux [2009-11-9 10:50:52] Have you ever wanted a solution for converting html to image on Linux? Html2Image for Linux is a command line tool that can convert html to image on Linux platform.
html2image linux now solves this... |
| Convert AutoCAD drawings to jpg/png/gif/bmp/tif with Any DWG and DXF to Image Converter. [2009-9-23 11:46:31] Any DWG and DXF to Image Converter is a batch converter that allows you to convert DWG and DXF files to TIF (TIFF), JPG (JPEG), BMP, GIF and PNG without the need of AutoCAD. Allows you to convert your... |
|
|
|
| Pixel Art | Pixel Art is a tool that can provide a quick and easy way to create pixel images within minutes, and have the end result stun and surprise anyone with how clear and great it looks.
All you have to to is select the squar |
|
| PearlMountain Image Resizer | PearlMountain Image Resizer is a handy application designed to help you convert, resize and rename images files rapidly.
It supports the most popular image formats: JPEG, BMP, TIFF, PNG, PSD, GIF, TGA, RAW, and almost |
|
| Perfect Layers | Perfect Layers is the fast, easy and affordable way to create layered files outside of Photoshop. With Perfect Layers you can create and edit multi-layered files directly from Lightroom, or even use it as a standalone ap |
|
| HyperSnap-DX | HyperSnap is the fastest and easiest way to take screen captures from Windows screen, and text capture (TextSnap) from places where normal text copy is not possible. HyperSnap combines the power of a first-class screen c |
|
| Design Grid | Design Grid is a handy and reliable utility designed to enable you to control the sizes and proportions in your designs. It has an austere design with auto-hide controls.
Design Grid will be useful in designing user in |
|
| Web SnapShot | Web SnapShot is a small utility that will help you save a webpage to jpeg format. |
|
| Blender | Blender is designed to be an Open Source and handy software that has been created to be a solution for rendering, animation, post-production, interactive creation, 3D modeling and playback.
Now you can make use of thi |
|
| MakeUp Guide | Did you forget to tint the lips or eyelids? You're not pleased with the eye color? Don't worry. Now you can correct it directly on your photos!
You virtual makeup bag offers these tools:
* Lipstick
* Powder
* Rouge
* Ey |
|
|