With LEADTOOLS PDF SDK technology, .NET, WPF, Silverlight, ASP.NET and C/C++ developers can add advanced PDF and PDF/A functionality to 32 and 64 bit single and multi-threaded applications. LEADTOOLS toolkits support both image and text searchable PDF file types.
LEADTOOLS supports reading and writing PDF files with a rich set of options including different versions (1.2 - 1.6), PDF/A, 40 and 128-bit encryption, font properties, bookmarks and embedding LEADTOOLS annotations to the final output document.
Watch a video for the LEADTOOLS PDF features
What do you want to do with PDF and PDF/A?
- Merge, Split, Convert, Linearize, and Distill PDF files
- Read and Extract text, bookmarks, hyperlinks, metadata and more from PDF
- Convert images such as JPEG or TIFF to searchable text-based PDF
- Convert images such as JPEG or TIFF to image-based PDF
- Convert PDF to an image format such as JPEG or TIFF
- Capture print jobs and convert to PDF from any application
- Create PDF and PDF/A Documents files with support for profiles, encryption, font properties, bookmarks and annotations
- Compress image-based PDF files
Explanation of PDF File Types
In general, PDF and PDF/A files can be categorized into two basic types: raster image and searchable text. Raster Image PDFs are comprised of a complete raster image in a PDF wrapper and support multiple compression types including JPEG, CCITT G3/G4, JBIG2, and LZW. The greatest advantage of raster image PDFs is that they appear identical to the original document. On the other hand, searchable text PDFs are often smaller in size and the text can be searched and edited as in a word processor.
When converting from raster images to searchable text based PDFs, the formatting of the original image is often modified. To alleviate this concern, LEAD has implemented a hybrid type of PDF known as "image over text". In image over text PDFs, the text is formatted as usual, but the 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, copied and pasted.
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