GdPicture Tesseract Plugin* is a low cost and royalty free OCR Engine available for GdPicture.NET suite. 

 

GdPicture Tesseract Plugin* brings OCR features to GdPicture.NET 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. 

 

GdPicture Tesseract Plugin supports many languages (see below) and can process more than 90 document formats. 

 

 

Technical Features: 

• Unicode Support.
• Character recognition confidence.
• Retrieve character location.
• Output text.
• Support for PDF/A OCR generation (PDF Image + hidden searchable text).
• Multiple languages: English, French, Italian, German, Spanish, Brazilian Portuguese, Vietnamese, Polish and Dutch.
• Can recognize only digits, only alpha or only "white listed" characters.
• Fast area processing.
• Document orientation detection.
• Easy to use.
• Fast, accurate & bug free.
• Royalty-free licensing: no distribution license required for server or desktop.

 

 

* GdPicture Tesseract Plugin is available for:

• GdPicture.NET Document Imaging SDK Ultimate (included in the license).
• GdPicture.NET Document Imaging SDK (requires an additional license).
• GdPicture.NET Image SDK (requires an additional license).
• GdPicture.NET TWAIN PRO SDK (requires an additional license).
• GdPicture.NET TWAIN SDK (requires an additional license).

 

** The GdPicture.NET TWAIN SDK doesn't include PDF output feature. 

 

 

 

 

 

 

 

 

Attribution: Parts of the GdPicture.NET.ocr.tesseract.dll library are based on Google's open-source Tesseract OCR which is used under the Apache License - Version 2.0. 

Below, a copy of the Apache License used by GdPicture.NET.ocr.tesseract.dll. 

 

 

 

Apache License 

Version 2.0, January 2004 

http://www.apache.org/licenses/ 

 

TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 

 

1. Definitions. 

 

"License" shall mean the terms and conditions for use, reproduction, 

and distribution as defined by Sections 1 through 9 of this document. 

 

"Licensor" shall mean the copyright owner or entity authorized by 

the copyright owner that is granting the License. 

 

"Legal Entity" shall mean the union of the acting entity and all 

other entities that control, are controlled by, or are under common 

control with that entity. For the purposes of this definition, 

"control" means (i) the power, direct or indirect, to cause the 

direction or management of such entity, whether by contract or 

otherwise, or (ii) ownership of fifty percent (50%) or more of the 

outstanding shares, or (iii) beneficial ownership of such entity. 

 

"You" (or "Your") shall mean an individual or Legal Entity 

exercising permissions granted by this License. 

 

"Source" form shall mean the preferred form for making modifications, 

including but not limited to software source code, documentation 

source, and configuration files. 

 

"Object" form shall mean any form resulting from mechanical 

transformation or translation of a Source form, including but 

not limited to compiled object code, generated documentation, 

and conversions to other media types. 

 

"Work" shall mean the work of authorship, whether in Source or 

Object form, made available under the License, as indicated by a 

copyright notice that is included in or attached to the work 

(an example is provided in the Appendix below). 

 

"Derivative Works" shall mean any work, whether in Source or Object 

form, that is based on (or derived from) the Work and for which the 

editorial revisions, annotations, elaborations, or other modifications 

represent, as a whole, an original work of authorship. For the purposes 

of this License, Derivative Works shall not include works that remain 

separable from, or merely link (or bind by name) to the interfaces of, 

the Work and Derivative Works thereof. 

 

"Contribution" shall mean any work of authorship, including 

the original version of the Work and any modifications or additions 

to that Work or Derivative Works thereof, that is intentionally 

submitted to Licensor for inclusion in the Work by the copyright owner 

or by an individual or Legal Entity authorized to submit on behalf of 

the copyright owner. For the purposes of this definition, "submitted" 

means any form of electronic, verbal, or written communication sent 

to the Licensor or its representatives, including but not limited to 

communication on electronic mailing lists, source code control systems, 

and issue tracking systems that are managed by, or on behalf of, the 

Licensor for the purpose of discussing and improving the Work, but 

excluding communication that is conspicuously marked or otherwise 

designated in writing by the copyright owner as "Not a Contribution." 

 

"Contributor" shall mean Licensor and any individual or Legal Entity 

on behalf of whom a Contribution has been received by Licensor and 

subsequently incorporated within the Work. 

 

2. Grant of Copyright License. Subject to the terms and conditions of 

this License, each Contributor hereby grants to You a perpetual, 

worldwide, non-exclusive, no-charge, royalty-free, irrevocable 

copyright license to reproduce, prepare Derivative Works of, 

publicly display, publicly perform, sublicense, and distribute the 

Work and such Derivative Works in Source or Object form. 

 

3. Grant of Patent License. Subject to the terms and conditions of 

this License, each Contributor hereby grants to You a perpetual, 

worldwide, non-exclusive, no-charge, royalty-free, irrevocable 

(except as stated in this section) patent license to make, have made, 

use, offer to sell, sell, import, and otherwise transfer the Work, 

where such license applies only to those patent claims licensable 

by such Contributor that are necessarily infringed by their 

Contribution(s) alone or by combination of their Contribution(s) 

with the Work to which such Contribution(s) was submitted. If You 

institute patent litigation against any entity (including a 

cross-claim or counterclaim in a lawsuit) alleging that the Work 

or a Contribution incorporated within the Work constitutes direct 

or contributory patent infringement, then any patent licenses 

granted to You under this License for that Work shall terminate 

as of the date such litigation is filed. 

 

4. Redistribution. You may reproduce and distribute copies of the 

Work or Derivative Works thereof in any medium, with or without 

modifications, and in Source or Object form, provided that You 

meet the following conditions: 

 

(a) You must give any other recipients of the Work or 

Derivative Works a copy of this License; and 

 

(b) You must cause any modified files to carry prominent notices 

stating that You changed the files; and 

 

(c) You must retain, in the Source form of any Derivative Works 

that You distribute, all copyright, patent, trademark, and 

attribution notices from the Source form of the Work, 

excluding those notices that do not pertain to any part of 

the Derivative Works; and 

 

(d) If the Work includes a "NOTICE" text file as part of its 

distribution, then any Derivative Works that You distribute must 

include a readable copy of the attribution notices contained 

within such NOTICE file, excluding those notices that do not 

pertain to any part of the Derivative Works, in at least one 

of the following places: within a NOTICE text file distributed 

as part of the Derivative Works; within the Source form or 

documentation, if provided along with the Derivative Works; or, 

within a display generated by the Derivative Works, if and 

wherever such third-party notices normally appear. The contents 

of the NOTICE file are for informational purposes only and 

do not modify the License. You may add Your own attribution 

notices within Derivative Works that You distribute, alongside 

or as an addendum to the NOTICE text from the Work, provided 

that such additional attribution notices cannot be construed 

as modifying the License. 

 

You may add Your own copyright statement to Your modifications and 

may provide additional or different license terms and conditions 

for use, reproduction, or distribution of Your modifications, or 

for any such Derivative Works as a whole, provided Your use, 

reproduction, and distribution of the Work otherwise complies with 

the conditions stated in this License. 

 

5. Submission of Contributions. Unless You explicitly state otherwise, 

any Contribution intentionally submitted for inclusion in the Work 

by You to the Licensor shall be under the terms and conditions of 

this License, without any additional terms or conditions. 

Notwithstanding the above, nothing herein shall supersede or modify 

the terms of any separate license agreement you may have executed 

with Licensor regarding such Contributions. 

 

6. Trademarks. This License does not grant permission to use the trade 

names, trademarks, service marks, or product names of the Licensor, 

except as required for reasonable and customary use in describing the 

origin of the Work and reproducing the content of the NOTICE file. 

 

7. Disclaimer of Warranty. Unless required by applicable law or 

agreed to in writing, Licensor provides the Work (and each 

Contributor provides its Contributions) on an "AS IS" BASIS, 

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 

implied, including, without limitation, any warranties or conditions 

of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A 

PARTICULAR PURPOSE. You are solely responsible for determining the 

appropriateness of using or redistributing the Work and assume any 

risks associated with Your exercise of permissions under this License. 

 

8. Limitation of Liability. In no event and under no legal theory, 

whether in tort (including negligence), contract, or otherwise, 

unless required by applicable law (such as deliberate and grossly 

negligent acts) or agreed to in writing, shall any Contributor be 

liable to You for damages, including any direct, indirect, special, 

incidental, or consequential damages of any character arising as a 

result of this License or out of the use or inability to use the 

Work (including but not limited to damages for loss of goodwill, 

work stoppage, computer failure or malfunction, or any and all 

other commercial damages or losses), even if such Contributor 

has been advised of the possibility of such damages. 

 

9. Accepting Warranty or Additional Liability. While redistributing 

the Work or Derivative Works thereof, You may choose to offer, 

and charge a fee for, acceptance of support, warranty, indemnity, 

or other liability obligations and/or rights consistent with this 

License. However, in accepting such obligations, You may act only 

on Your own behalf and on Your sole responsibility, not on behalf 

of any other Contributor, and only if You agree to indemnify, 

defend, and hold each Contributor harmless for any liability 

incurred by, or claims asserted against, such Contributor by reason 

of your accepting any such warranty or additional liability. 

 

END OF TERMS AND CONDITIONS 

 

APPENDIX: How to apply the Apache License to your work. 

 

To apply the Apache License to your work, attach the following 

boilerplate notice, with the fields enclosed by brackets "[]" 

replaced with your own identifying information. (Don't include 

the brackets!) The text should be enclosed in the appropriate 

comment syntax for the file format. We also recommend that a 

file or class name and description of purpose be included on the 

same "printed page" as the copyright notice for easier 

identification within third-party archives. 

 

Copyright [yyyy] [name of copyright owner] 

 

Licensed under the Apache License, Version 2.0 (the "License"); 

you may not use this file except in compliance with the License. 

You may obtain a copy of the License at 

 

http://www.apache.org/licenses/LICENSE-2.0 

 

Unless required by applicable law or agreed to in writing, software 

distributed under the License is distributed on an "AS IS" BASIS, 

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

See the License for the specific language governing permissions and 

limitations under the License.