Sobre o LEADTOOLS Raster PDF Plug In

Adicione suporte a PDF aos seus aplicativos LEADTOOLS.

LEADTOOLS Raster PDF Plug In is an add-on module for all LEADTOOLS SDKs that extends support for PDF, Postscript and EPS formats. It allows for the loading, saving, viewing, rasterizing and encoding of these three formats and integrates seamlessly with the imaging functionality present in the existing LEADTOOLS toolkits. Full multi-page write support is provided with this module and you can append, insert, replace or delete a specified page in a generated PDF file. The LEADTOOLS Raster PDF Plug In has the following import capabilities: PDF 1.3, PostScript Language Level 3 and EPS files. Support is also provided for loading the entire document or a specified set of sequential pages.

Overview

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

  • Loads PDF 1.4 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
  • JBIG2 compression. Bits per pixel: 1

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

Encryption/Decryption

  • RC4 40-bit key encryption
  • RC4 128-bit key encryption

Support for User password, Owner password permissions.