The LEADTOOLS PDF plug-in has the following import capabilities:

• Loads PDF 1.3 files.
• Loads PostScript Language Level 3 files.
• Loads EPS files.
• Support is provided for loading the entire document or a specified set of sequential pages.

The plug-in provides a number of options for controlling the rasterization of the page, including:

• Pixel depth - Valid values are 1,4,8 and 24.
• Horizontal resolution in dots per inch.
• Vertical resolution in dots per inch.
• Ability to use fonts installed by the plug-in or system fonts.
• Font anti-aliasing - Valid values are 1-bit(no anti-aliasing) , 2-bit and 4-bit.
• Graphics anti-aliasing - 1-bit , 2-bit and 4-bit.

Saving Capabilities

Full multi-page write support is provided by this module for the PDF format. You can append, insert, replace or delete a specified page in the generated PDF file.

The plug-in gives you a wide range of control options for the resulting image data in terms of compression. These include:

• No compression, where the image is embedded inside the file without any compression.
• Compressed using CCITT Group 3, 1 dimension. For 1-bit images.
• Compressed using CCITT Group 3, 2 dimensions. For 1-bit images.
• Compressed using CCITT Group 4. For 1-bit images.
• JPEG compression and YUV 4:4:4 color space loss-less. Bits per pixel: 8 for grayscale, 24 for color.
• JPEG compression and YUV 4:2:2 color space. Bits per pixel: 8 for grayscale, 24 for color.
• JPEG compression and YUV 4:1:1 color space. Bits per pixel: 8 for grayscale, 24 for color.
• The plug-in also gives you control over the type of encoding to be used in order to change compressed image data into a text encoded format. The text encoding techniques include:
  • No text encoding at all.
  • Use ASCII 85 text encoding algorithm.
  • Use ASCII HEX text encoding technique.

PDF

PDF stands for Portable Document Format. It was developed by Adobe Corporation to allow users to exchange and view their electronic documents in an easy and reliable way, independent of the environment in which these documents were created. A PDF file will look the same on the screen and in print regardless of what kind of machine you are using or which software package was used to create that file. One major advantage of PDF is that a large document can be compressed small enough to download very quickly, and still displays content as if you were looking at the original source such as a book or magazine.

PDF is emerging as a powerful format for reproducing documents over the web. Because of its high precision and accuracy in representing text and pictures along with its "hyper" nature, PDF is becoming a popular alternative to HTML and Postscript.

Postscript

Postscript is a simple interpretive page description language. Its primary application is to describe the appearance of text, graphical shapes, and sampled images on printed or displayed pages. Some of the page description and interactive graphics capabilities of the PostScript language include arbitrary shapes, painting operators, text fully integrated with graphics and sampled images derived from natural sources. Postscript is the language that most advanced laser printers use in order to render electronic information on a printed page.

EPS

EPS stands for Encapsulated PostScript. An EPS file is a PostScript language program describing the appearance of a single page. Usually, the purpose of the EPS file is to be embedded inside another PostScript language page description. The EPS file can contain any combination of text, graphics, and images, and it is the same as any other PostScript language page description with only a few limitations.

LEADTOOLS PDF Plug-In requires runtime licensing based on the deployment of the application you develop. Several purchase options are available. For more information, please contact sales@hallogram.com or call a HALLoGRAM sales representative.