.NET PDF SDK

PDF viewer

Add a customizable and fully-featured viewer to your applications.
This viewer for all platforms displays complex files instantly, with a crystal clear rendering and full Unicode support. Support for all versions of PDF and PDF/A and 100+ document, office, and image formats.
Add thumbnails, annotations, signature, redaction, encryption, text search, and much more!

PDF generation

Create structured, secure, and compliant PDF files (all versions including PDF 2.0) with the GdPicture.NET PDF SDK.
Go a step further and build accessible PDFs with PDF/UA generation feature. Make your PDFs ready for long-term archiving with PDF/A compliance or generate PDF files for the Web with linearization.
You can also add layers, transparency, images and other contents, and more!

PDF conversion

Add advanced document conversion capabilities from +100 file formats to your applications.
Compress and optimize your files during conversion, make your documents searchable, and compatible for long-term archiving.
Convert and combine Office formats, CAD, SVG, DICOM, and other images formats to all versions of PDF and PDF/A.

Scanning

Acquire documents from scanners and digital cameras with TWAIN and WIA capabilities. Develop fully-featured scanning application with duplex scanning, blank page detection, and advanced batch features.

Printing

Print any document on any printer!
GdPicture.NET PDF SDK offers a wide range of printing capabilities, including single page and multi-page document support, printer dialog boxes, printer selection, print quality mode, printing alignment, paper tray selection, and more.

Hyper-compression

The GdPicture.NET hyper-compression engine is based on innovative MRC (Mixed Raster Content) technologies producing spectacular results by automatically adjusting the tradeoff between quality and compression rate to provide top quality PDF MRC documents at the smaller possible size. The MRC engine can handle any document, including forms, photos, and vectors.

Optimization

Probably the most comprehensive PDF optimization engine of the market. More than ten years of continuous research have been required to address all areas of compression and optimization, focusing on font optimization, data compression, and image analysis.

Annotation & collaboration

Bring annotations and collaborative features to your PDF, office, and image files.
Add annotation capabilities to your applications such as editing, custom annotations, rubber-stamp, sticky notes, freehand, text, and more.
Ease real-time collaboration and workflows by adding comments and setting permissions with DocuVieware.

Form filling

Create, edit, flatten, and print form fields with GdPicture.NET PDF SDK.
All modifications are displayed in the viewer in real-time.
Full support for PDF transparency schemes for rendering and PDF creation is included.
Integrate instant collaborative form filling processes in your workflows with our HTML5 viewer.

Editing

Edit and modify your PDF files any way you want: split and merge documents, swap, delete, append, clone, duplicate, and rotate pages. Make content changes, add, and extract fonts, edit annotations and other graphical elements. Repair corrupted documents. Display the modified PDF in the viewer in real-time.

OCR

Based on a continuously improved technology, the GdPicture.NET OCR engine provides features such as text recognition on a specific area of an image and the ability to create searchable PDF/A files (PDF-OCR) from scanned documents, images or existing PDF documents. 100+ languages support.

OMR

GdPicture.NET OMR and Template Recognition SDK
The GdPicture.NET forms processing engine provides an anchoring mechanism (also known as template recognition) and Optical Mark Recognition (OMR) features.
The anchoring mechanism can help align the area to be processed by filters, OMR, OCR, or barcode recognition.

Barcode reading & writing

GdPicture.NET SDK offers full support for 1D and 2D barcode reading and writing features (linear, DataMatrix, QR Code and Micro QR Code, PDF417, Aztec code). The various barcode engine delivers fast and accurate results, even on poor-quality documents and partial images, thanks to fuzzy logic and AI technologies.

MICR

Add Magnetic Ink Character Recognition (MICR) capabilities to your banking and check reader applications and decode E-13B and CMC7 fonts.
The engine detects and decodes the MICR line with outstanding speed and accuracy from any structured document such as checks by analyzing the full page layout.

Automatic document recognition

GdPicture ADR is an intelligent engine designed for automatic document classification and categorization tasks in a document and information management system. It allows your applications to identify invoices, checks, forms, orders, delivery notes, page separators, or any structured document. It can also be used to develop image comparison applications.

Tagged PDF

Generate tagged PDFs from scratch and create accessible documents.
GdPicture.NET PDF SDK includes PDF/UA support to generate and validate fully accessible and ISO compliant PDF files. Well-tagged PDFs can reflow and their content can fit different screens or mobile devices better.

Encryption

Secure documents with password protection and adjusting permissions on the document.
Remove password security of a PDF. Make your digital signing process safe with the latest encryption technologies.

Digital signature

Use digital signatures and certificates to ensure the authenticity and integrity of your PDF documents. Add advanced signing support with a high-security level to all your applications, thanks to PDF/A compliance and support for digital certificates, timestamps, and multiple signatures.

Redaction

Remove sensitive and personal data from your PDF documents.
Integrate PDF Redaction features in your workflows to safely share or archive your files.
Build applications compliant with data privacy and protection regulations (GDPR, CCPA).

PDF/A support

Convert your PDF files and documents to PDF/A (all versions), the ISO standard for long-term archiving.
PDF/A files created with GdPicture.NET are ISO-compliant, and you can check your files with our PDF/A validator.
Converted files are fully searchable and keep a reasonable size thanks to the hyper-compression engine.