Released: Aug 25, 2020
Atualizações na v21
Recursos
New in LEADTOOLS Document Engine
Document Framework
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Document Viewer
- New Document Viewer Component for Xamarin Forms.
- Added support to load and play any of LEAD's supported video formats in the .NET and Java Document Viewer (Windows only).
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Client-side PDF rendering enhancements include:
- Stamp rendering.
- Memory optimization.
- Render digital signatures.
- Switch to service mode based on individual page size or image encoding.
- Speedup for calRGB/grayscale color space rendering.
- Customize text in thumbnails.
- Added support for history (previous/next document).
- Improved UI responsiveness when viewing documents with many pages.
- Added custom UI injection and binding support to the high-level ReactJS document viewer control, LEADVIEW.
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Attachments
- Added support for general purpose and PDF attachments.
- Added support for PDF Embedded files and Portfolio.
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Document Service
- Added support to load a mix of different annotations formats, including IBM P8/Deja annotations.
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Hybrid Caching
- Use rules to mix different cache back ends. For example, smaller items use in-memory cache and large items use a remote cache.
New Document and Image Compare Libraries
- Compares two documents or pages and intelligently highlights changes, additions, and deletions.
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- Text compare.
- Bitmap compare.
Document Converter
- Document Converter optimizations to speed up text extraction.
PDF SDK Updates
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PDF Loading and Rendering
- Redesigned PDF loading and rendering to significantly optimize memory usage, load time, and render quality, with smooth zooming and no pixelation.
- Optimized memory usage, load time, and render quality.
- Optimized functions that control PDF metadata to be faster.
- Functionality added to load and render only a portion of a PDF document.
- Rasterization of documents at 2400 DPI.
- Added "Enhance Thin Lines" rendering feature to clarify thin lines in the viewer.
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PDF Portfolio and PDF Attachment
- Load PDF Portfolio documents.
- Load portfolio schema.
- Extract files within PDF Portfolio documents.
- Load PDF document with embedded attachments.
- Extract embedded attachments from PDF documents.
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PDF Redaction Updates
- Added support for image redaction.
- Updated text redaction to support text inside Form XObject.
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Additional PDF Updates
- Load PDF forms.
- Enhanced PDF annotations (create, modify, load and save).
- Enhanced PDF manipulation operations such as PDF merge, insert, and extract pages.
- Enhanced the PDF Optimizer.
- Enhanced PDF/A conversion with focus on font handling.
Updates for Office Formats
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Added support to render many chart types, including:
- Radar.
- Area.
- Scattered.
- Line.
- Bar.
- Chart legends.
- Enhanced support for vector graphics rendering in all Office formats.
- Enhanced SVG text rendering and extraction.
- Optimize speed and memory usage for all document formats: DOC, DOCX, XLS, XLSX, PPT, and PPTX.
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DOC/DOCX
- Mathematical equation model (OMML) support in DOCX only.
- Optimized load speed and memory usage.
- Added support for equation formula calculations.
- Sections and Drawing-ML shapes.
- Enhanced support for rendering nested tables.
- Enhanced text wrapping around text boxes.
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XLS/XLSX
- Optimized speed and memory usage.
- Faster loading for large sheets.
- Formula evaluator module to handle all logical operations and calculations for conditional formatting.
- Table design support.
New in LEADTOOLS Imaging Engine
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Xamarin Camera
- Added control of preview size and frame rate.
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New Image Processing Functions
- Extract Object - Extracts connected groups of pixels from an image.
- Canny Edge Detector.
- Forms Field Detector.
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Updates to Formats
- Optimized memory usage for J2K format.
- Expanded J2K support to include some files that do not follow the specification.
- Added support to load 8-bit TIFF and PNG files with 8-bit alpha for transparency.
- Added support for ANSI, UTF7, UTF8, UTF16LE, UTF16BE encoded text files.
- Added support to load CGM files saved with text encoding.
- Added support to render Medium Map Overlay for AFP (MODCA) documents.
Additional Changes
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New powerful Xamarin demos that show more features of LEADTOOLS in a Xamarin development environment. These new demos are designed to look like end-user applications, but the source code for them is included so that anyone can get a head start. Below are some of the new demos included in version 21:
- Annotations Demo.
- Barcode Demo.
- Business Card Reader Demo.
- Camera Demo.
- Converter Demo.
- DICOM Demo.
- Document Viewer Demo.
- Image Processing Demo.
- Live Filter Demo.
- MICR Demo.
- OCR Demo.
- Maven repository for Android.
Changes to the LEADTOOLS Product Line in Version 21
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The following products have been renamed:
- LEADTOOLS Document Imaging to LEADTOOLS Document.
- LEADTOOLS Recognition Imaging to LEADTOOLS Recognition.
- LEADTOOLS Document Imaging Suite to LEADTOOLS Document Suite.
- LEADTOOLS Medical Imaging to LEADTOOLS Medical.
- LEADTOOLS Medical Imaging Suite to LEADTOOLS Medical Suite.
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The following products have been added.
- LEADTOOLS Forms - includes all features of the LEADTOOLS Recognition product, including ICR, MICR, MRZ, and OMR, plus forms recognition and processing.
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The following products have been removed.
- LEADTOOLS PACS Imaging - functionality moved into the LEADTOOLS Medical product.
- LEADTOOLS Medical Multimedia Module - functionality moved into the LEADTOOLS Medical product.
- LEADTOOLS Dental Display Module.
- The LEADTOOLS Document Suite and the Medical family of products include all features of LEADTOOLS Multimedia.