LEADTOOLS Document SDK products include comprehensive document and imaging libraries to load, save, convert, and view PDF files.
LEADTOOLS libraries provide functions such as the extraction of text, images, hyperlinks, and metadata,
editing of bookmarks and annotations, page replacement, split and merge existing files,
convert to PDF/A, linearization, and compression.
Combined with rasterization and image display components, developers can take advantage of these tools
to enhance their applications with dynamic document viewing, editing, and assembly features.
Furthermore, programmers using .NET (C# & VB, Core, Xamarin, UWP), C/C++, iOS, macOS, Linux, Java, and web can leverage state-of-the-art
OCR, OMR, ICR, Forms Recognition, Virtual Printing, and scanning technologies within LEADTOOLS to create any
type of document and medical imaging application that utilizes the PDF format.
Tested against thousands of files, LEADTOOLS provides impeccable rendering accuracy that tops
many market-leading third-party applications.
LEADTOOLS accounts for common errors and differences between PDF versions to give programmers peace of mind, minimize
testing phase, and create the best applications on the market.
Parse the document structure by reading and updating bookmarks (table of contents) and internal links (jumps)
Unicode support, including Chinese, Japanese, Arabic, and Hebrew character-sets
Generate a raster image and thumbnail of any page
PDF File Features
The PDF Optimizer component uses AI to analyze features of the document to create the smallest file possible
Comprehensive multi-page support includes
Merge existing files into a single file
Split a single file into multiple files
Extract, delete, insert, and replace any page in existing files
Convert existing PDF to PDF/A
Convert between PDF versions
Convert (distill) postscript to PDF with optimization for eBook, screen, and pre-press
Convert documents to vector SVG
Linearize (optimize for web viewing)
Create auto-print files
Read, write, and update the Table of Contents
Read, write, and update all metadata such as author, title, subject, keywords, and initial view
Read and write PDF Digital Signatures
Encrypt and decrypt documents
PDF Annotations and Markups
LEADTOOLS supports reading, displaying, editing, and writing annotations and markups
that work seamlessly with Adobe Acrobat and other compliant readers.
With annotations and markups, users can
collaborate by writing comments and drawing shapes on the
document without making permanent changes. Additionally, sensitive information can be redacted to
help your application comply with privacy and protection standards such as GDPR and HIPPA.
Supports the following annotation and markup objects and properties
Comments and replies
Display annotations with border effects and cloud stroke
Options to control annotation rendering when loading as raster with support for No Appearance Stream annotations
Fully functional sample application with source code that implements reading, writing, editing, and annotation features
With LEADTOOLS, developers can easily convert any image into a searchable PDF.
These files are generally smaller in size than the comparable raster image and the embedded text can be searched, indexed, and edited.
Export as text-only for minimal file size or export as image-over-text to retain original formatting
Multiple PDF versions and flavors including 1.2 - 1.7 and PDF/A
Multiple compression options for images within the file, including:
Convert entire file or only specified pages
Create and update metadata such as author, title, and keywords
Protect sensitive data with encryption using RC4 40-bit and RC4 128-bit encryption
Control access to the contents with a password
Enable file permissions with a password
Create linearized files for faster web viewing
Convert images from disk, memory, Internet, SharePoint, and cloud
Image-based PDF Features
In addition to handling text-based files, LEADTOOLS fully supports loading, saving, and editing image-based files.
This includes rasterizing both text and image-based PDF files,
as well as converting single and multi-page image formats such as JPEG and TIFF into image-based PDF files.
Multiple versions and flavors, including 1.2 - 1.7 and PDF/A
Multiple compression options, including:
Specify RGB or CMYK color space
Convert entire file or only specified pages
Encrypt and decrypt documents using RC4 40-bit and RC4 128-bit encryption
Control access with User and Owner passwords
Load from disk, memory, Internet, and SharePoint
At the heart of PDF-to-image conversion is the rasterization process. PDF documents are comprised of vector objects such as text, shapes, and images.
These objects have a relative location based on the physical, printed dimensions. This means that these files can be rasterized to
any pixel dimension which provides varying quality depending on the DPI selected. LEADTOOLS libraries provides maximum flexibility when rasterizing
files so developers can control the quality, size, color, and more.
Automatically detects the best rasterization options by examining the contents of the PDF
Rasterize to any DPI to control overall quality and file size
Load at 1, 8, or 24 bits per pixel
Render fonts with 2 or 4-bit anti-aliasing, resulting in a more readable image
Display CIDFonts not embedded in the file
Detect the original DPI of embedded images
Rescale embedded vector graphics with 2 and 4-bit anti-aliasing to reduce jaggies
Vector-based PDF Features
LEADTOOLS provides a specialized framework to handle vector-based documents.
Only available in the Document and Medical Imaging product families, this framework provides the ultimate experience
for developing applications that need vector-based document support.
LEADTOOLS libraries provides developers everything they need to use existing PDF Forms. Any field can be read, filled, and saved.
Read form field information such as location and type
Enter data into form fields
Extract data from filled forms and save as XML
Supports Acrobat Forms Data (FDF) and Adobe XML Forms Architecture (XFA)
Maintain quality while maximizing compression with LEADTOOLS advanced image segmentation
and compression components. Files optimized with this component can be viewed in any PDF viewer.
By storing complex mixed raster content (MRC), this component creates files with better compression and quality than a standard raster PDF file.
AI automatically segments the image with optimization options
Manually segment the image to take full control over file size and image quality optimization
Multiple compression options, including:
Automatic background detection
Compress single and multi-page files
Explanation of PDF File Types
In general, PDF and PDF/A files can be categorized into two basic file types: raster image and searchable.
Raster image files are comprised of a complete raster image in a PDF wrapper and support multiple compression types, including JPEG,
JPEG 2000, CCITT G3/G4, JBIG2, LZW, and MRC.
The greatest advantage of raster image-based files is that they appear identical to the original document. On the other hand, searchable files
are often smaller in size and the
text can be searched and edited.
When converting from raster images to searchable PDFs, the formatting of the original image is often modified.
To alleviate this, LEAD has implemented a hybrid type known as "image over text". In image-over-text files,
the text is formatted as usual, while the original raster image is overlaid on top of the text. This maintains the look and formatting
of the original raster image while still allowing the text content to be searched, selected, and copied.
The Full Evaluation Download includes all LEADTOOLS Recognition, Document, Vector, Medical, and Imaging
technologies for all development and target platforms. Get everything LEADTOOLS all in one convenient download.
Electronic document archival has evolved far beyond the simple days of scanning a paper document and saving it as an image or PDF. Nowadays, many documents don't even start in physical form and could be one of many open or proprietary formats. Adding to the disparity caused by varying file formats is how and where files are stored. Many enterprises have their documents spread around numerous "data islands" including local computers, networked file shares, and cloud services. This white paper will explore how to take full advantage of PDF/A as your universal document storage format by using the state-of-the-art technology within LEADTOOLS Document Imaging SDKs.
When it comes to change, the desire for efficiency is surely at or near the top of the list of reasons. Some processes and industries are harder to change, especially those that have been around for a long time. Court systems in many countries are one of the oldest and most well established processes to ensure all-around fairness, even if it must sacrifice expediency. Thankfully, the legal industry has taken major strides towards adapting to the digital age with the evolution of eDiscovery and document imaging.
Load a document from local disk and url
Draw annotations on the document
Use thumbnail viewer for page selection
View any bookmarks that have been included in the document
Screenshots of PDF
PDF File Properties
PDF Displayed in Document Viewer
Videos of PDF
This tutorial shows LEADTOOLS PDF features including TIFF to PDF conversion, PDF text extraction, PDF file properties and more.
LEADTOOLS PDF Pro provides everything developers need to read, write, raster-view, and update PDF files. It also includes advanced capabilities such as the extraction of text, images, hyperlinks, and metadata, manipulation of pages in existing PDF documents, conversion to PDF/A as a real document, linearization, and the LEADTOOLS PDF Optimizer to reduce the size of PDF files. By building upon the award-winning LEADTOOLS Imaging Pro features which includes 150+ image formats, image compression, image processing, image viewers, imaging common dialogs, 200+ display effects, TWAIN and WIA scanning, screen capture, and printing, LEADTOOLS PDF Pro is one of the best values available.
LEADTOOLS Pro Suite is a an extensive bundle in the LEADTOOLS Pro line of SDKs and includes HTML5 Zero-footprint image viewers, barcode detect/read/write, advanced PDF read/write/view/edit, 150+ image formats, image compression, image processing, image viewers, imaging common dialogs, 200+ display effects, TWAIN and WIA scanning, screen capture, and printing. Developers using LEADTOOLS Pro Suite can develop robust imaging applications and solutions at a fraction of the cost of similar feature sets found elsewhere on the market.
Develop powerful document imaging applications with LEADTOOLS Document Imaging. Features include PDF viewing and editing, comprehensive image annotating, specialized bitonal image displaying, and image processing. Other features include performance and memory optimizations for bitonal images, document image cleanup, including inverted text, border, hole-punch, and line removal, and scanning with LEADTOOLS Fast TWAIN and WIA.
The LEADTOOLS Recognition Imaging SDK is a handpicked collection of LEADTOOLS SDK features designed to build end-to-end document imaging applications within enterprise-level document automation solutions that require OCR, MICR, OMR, barcode, forms recognition and processing, PDF, print capture, archival, annotation, and image viewing functionality. This powerful set of tools utilizes LEAD's award-winning image processing technology to intelligently identify document features that can be used to recognize and extract data from any type of scanned or faxed form image.
The LEADTOOLS Document Imaging Suite SDK is a comprehensive collection of LEADTOOLS SDK features designed to build end-to-end document imaging solutions that require OCR, MICR, OMR, ICR, barcode, forms recognition and processing, PDF, HTML5 Zero-footprint viewing, conversion, print, capture, archival, annotation, and image viewing functionality. This powerful set of tools utilizes LEAD's award-winning image processing technology to intelligently identify document features that can be used to recognize and extract data from any type of scanned or faxed form image.
Develop powerful Medical Imaging applications with the LEADTOOLS Medical Imaging SDK. Features include comprehensive DICOM data set support, 8-16 bit extended grayscale image support, image annotation, specialized extended grayscale image display such as window level and LUT processing, and medical-specific image processing. Other features include lossless JPEG compression, and signed and unsigned image data processing.
Develop robust DICOM PACS applications with LEADTOOLS PACS Imaging. Features include Medical Web Viewer Framework, high and low-level PACS SCP and SCU functions and controls, secure PACS communication, comprehensive DICOM data set support, image annotation, extended grayscale image display such as window level and LUT processing, and specialized medical image processing. Other features include lossless JPEG compression, JPIP, MRTI, and signed and unsigned image data processing.
Develop powerful PACS and Medical imaging applications with LEADTOOLS Medical Imaging Suite. Features include LEAD's Zero-footprint HTML5 DICOM Viewer, Medical Web Viewer Framework, Medical 3D, DICOM Multimedia codecs, high and low-level PACS SCP and SCU functions and controls, secure PACS communication, Print to PACS, comprehensive DICOM data set support, image annotation, extended grayscale image display such as window level and LUT processing, DICOM Hanging Protocol, and specialized medical image processing. Other features include lossless JPEG compression, JPIP, and signed and unsigned image data processing.
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