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PDF Export OCR Predefined Profiles

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Question / Problem: 

What are the Predefined PDF Export OCR Profile values that are valid for use with the PreDefinedProfile setting that was introduced in Kofax Express 3.2 Fix Pack 26 and how do these profiles affect OCR accuracy and PDF Generation speed?

Answer / Solution: 

Fix Pack 26 for Kofax Express 3.2 introduced a new export setting, <PreDefinedProfile> in the App.AppProfile file.  This value allows the user to determine which predefined ABBYY OCR profile is used during PDF generation.  These profiles can have a significant effect on the performance and accuracy of OCR during PDF generation.   

By default, the <PreDefinedProfile> value is set to DCS.

The Speed Rating in the table below contains relative speeds (1=fastest, 8=slowest) observed in Kofax internal testing when exporting business document sized images as PDF files while performing OCR in both English and Czech.  Kofax recommends only enabling one language for OCR in the export settings (if possible) for best results.  The slowest profile was twice as fast at PDF generation than processing with Kofax Express 3.2 Fix Pack 25 and earlier.

Actual processing speed may vary.  Kofax recommends performing comparison testing using real-world documents when determining which profile provides the best balance of accuracy and speed.

 

Value Profile Name Suitable For Optimized For Features Fast Mode Required? Speed Rating

BAA

 

BookArchiving_Accuracy

 

Creating:

- PDF

- PDF/A

- PDF with Mixed Raster Content

- PDF/A with Mixed Raster Content

Accuracy and Best Quality

 

- Font Style Detection

- Full synthesis of doc logical structure

No

 

6

 

BAS

 

BookArchiving_Speed

 

Creating:

- PDF

- PDF/A

- PDF with Mixed Raster Contect

- PDF/A with Mixed Raster Content

Speed and Best Quality

 

- Font Style Detection

- Full synthesis of doc logical structure

- Doc analysis and recognition speed increased

Yes

 

7

 

DAA

 

DocumentArchiving_Accuracy

 

Creating:

- PDF

- PDF/A

- PDF with Mixed Raster Content

- PDF/A with Mixed Raster Content

Accuracy and Best Quality

- Max Text Detection including text embedded in an image

- Deskew not performed

- Fonts and styles not detected

- Full synthesis of doc logical structure not performed

No

 

1

 

DAS

 

DocumentArchiving_Speed

 

Creating:

- PDF

- PDF/A

- PDF with Mixed Raster Content

- PDF/A with Mixed Raster Content

Speed and Best Quality

 

- Max Text Detection including text embedded in an image

- Deskew not performed

- Fonts and styles not detected

- Full synthesis of doc logical structure not performed

- Doc analysis and recognition speed increased

Yes

 

2

 

DCA

 

DocumentConversion_Accuracy

 

Creating:

- PDF

- PDF/A

Accuracy and Best Quality

 

- Font Style Detection

- Full synthesis of doc logical structure

No

 

5

 

DCS

 

DocumentConversion_Speed

 

Creating:

- PDF

- PDF/A

Speed and Best Quality

- Font Style Detection

- Full synthesis of doc logical structure

- Doc analysis and recognition speed increased

Yes

 

8

 

EDP

 

EngineeringDrawingsProcessing

 

Converting large. complicated technical diagrams to searchable PDF

 

Detecting text in multiple orientations

 

- Detects all text on image including blocks of vertical text

- Full synthesis of doc logical structure not performed

No

 

4

 

TEA

 

TextExtraction_Accuracy

 

Extracting text from a document

 

Accuracy

 

- Detection of all text on image, including small areas of low-quality

- Pictures and Tables not detected

- Fonts and styles not detected

- Full synthesis of doc logical structure not performed

No

 

3

 

TES

 

TextExtraction_Speed

 

Extracting text from a document

 

Speed

 

- Detection of all text on image, including small areas of low-quality

- Pictures and Tables not detected

- Fonts and styles not detected

- Full synthesis of doc logical structure not performed

- Doc analysis and recognition speed increased

Yes

 

3

 

 

To change the Predefined Profile used during OCR and PDF generation:

  1. Close Kofax Express
     
  2. Upgrade to Kofax Express 3.2 Fix Pack 26 or higher
     
  3. Navigate to
    C:\ProgramData\Kofax\Kofax Express 3.2\
     
  4. Open App.AppProfile in a text editor such as Notepad
     
  5. Locate the following line:
    <PredefinedProfile>DCS</PredefinedProfile>
    
  6. Set the PredefinedProfile value to the three-letter value associated with the desired profile. Example:
    <PredefinedProfile>DAA</PredefinedProfile>
    
  7. Save the changes to App.AppProfile
     
  8. Restart Kofax Express

 

Applies to:  

Product Version
EXPRESS 3.2

 

 

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