The Colortrac TWAIN solution for SC and SG Series scanners
Colortrac SmartWorks TWAIN drivers provide a simple way to directly control any SmartLF SC or SG Series wide format scanner from inside applications that are compatible with the TWAIN 1.5 standard and other specialist software that supports Twain connected scanners.
For many users of image management software or any software that relies on using a scanner the TWAIN interface will no doubt sound familiar. The Colortrac SmartWorks TWAIN driver provides a simple way to directly control a SmartLF SC or SG Series wide format scanner from inside applications that are compatible with the TWAIN 1.5 standard and other specialist software that supports TWAIN connected scanners.
SmartWorks TWAIN installs itself as a TWAIN plug-in module and is automatically recognized when the application supporting TWAIN is started. Help and guidelines for operation of Colortrac Twain can be found here.
Functioning ISIS and TWAIN scanning interfaces offer very similar scanning experiences for the operator but they differ considerably in how they are provided. ISIS is highly regulated to control the quality of the driver and every ISIS driver is certified by EMC who hold the rights to the ISIS scanner connection standard. Certification is not free which ensures higher standards but it also means that TWAIN as free and open-standard software is more widely accepted and more popular within the majority of scanning software providers and developers.
SmartWorks TWAIN | |||
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Supported Scanners | The following SmartLF scanner models will work with the TWAIN driver SC 25, SC 36, SC 42, SC 25 Xpress, SC 36 Xpress, SC 42 Xpress, SG 36, SG 44 |
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Resolution (dpi) | 200, 300, 400 50, 600 and 1200 dpi | ||
Summary | Included as standard with all SmartLF SC Series and SG Series scanners | ||
Color Modes /Controls | – 16.7 million RAW RGB color (24-bit) – 8-bit Grayscale – Fixed Threshold Black & White, Paper Size, Resolution, Contrast and Brightness |
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Document Type Filters | None by TWAIN itself. The format of images saved from the TWAIN scan is fully dependent on the application running the TWAIN. | ||
Scan to File | Not available unless provided by the TWAIN interface of the host software | ||
Scan to Email | Not applicable | ||
Copy | Not available | ||
Handled by printing the scanned image from the application hosting TWAIN if Print is available. No print drivers or print method is provided by the Twain interface directly. | |||
Driver Setup | Settings are not saved through sessions Scanner speed – full or half-speed Resolution – see above Choose from ISO, ANSI or ARCH paper size standards Units – manual paper size and paper dimensions selectable in/mm |
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Reset | Changes paper size, resolution, color mode to the program defaults | ||
Scan length limit | In excess of A0 but depends heavily on the host application and the specification of the computer hardware. Will reduce as resolution increases | ||
Copy length limit | Not applicable | ||
Languages | English only | ||
System Compatibility | Windows 11 64-bit, Windows 10 64-bit and 32-bit, Windows Server 2022 | ||
Notes | 1. Only one scan application or scanner utility program can be operated with SmartLF scanners at the same time 2. See System Requirements for more information on USB3 and computer specifications |
Installation of this product is handled as part of the Colortrac SC or SG Utilities installation. No separate installation is needed.
TWAIN Online Help
Colortrac TWAIN is aimed primarily at 3rd-party software developers who can now use the Twain v1.5 specification to quickly build basic scan tool interfaces for the Colortrac SmartLF SC scanner into virtually any software application. Colortrac TWAIN permits the user to control resolution, color mode and scan size. It will not support the higher Twain functions such as optical character recognition (OCR) and color management. All file formatting and image enhancement is handled by the host application.
For non-developers Colortrac TWAIN has been tested with the following software applications. Batch scanning is not supported.
Adobe Acrobat
Microsoft Publisher
irfanview
PaperScan Free
The End User License Agreement governing your rights and the use of Colortrac software is available from the link below:
Colortrac Software EULA
© Colortrac 2025, all rights reserved, all trademarks acknowledged
Prospective purchasers of wide format scanners have a choice between SingleSensor (CIS) based scanners and the (typically) more expensive CCD image sensor technology
This on-line 'Challenge' is a tool to help you find the right imaging technology for scanning your Large Format documents. The result is based on your selection of comparative image samples.
Take the 2 minute SingleSensor Challenge to see which imaging technology is the best-fit for your originals and application requirements, be they CAD, GIS, graphics, blueprints or photos.
If you need to scan or copy Blueprint documents the Colortrac challenge will help you find the right scanner technology based on your own unique preferences.
A series of typical wide format document types will be displayed in sequence with two images shown side-by-side. One image scanned by SingleSensor and one by CCD.
Choose the image you prefer by clicking on the “Select” button underneath. If you cannot see a difference, you should select “No preference” in the middle bottom of the screen to continue.
Document Size: 23" x 16"
Document Type: 1-bit adaptive bitonal
Document Format: 300dpi TIFF
Substrate: Inkjet Paper
Document Size: 23" x 16"
Document Type: 1-bit adaptive bitonal
Document Format: 300dpi TIFF
Substrate: Inkjet Paper
Document Size: 23" x 16"
Document Type: 1-bit adaptive bitonal
Document Format: 300dpi TIFF
Substrate: Inkjet Paper
Document Size: 23" x 16"
Document Type: 1-bit adaptive bitonal
Document Format: 300dpi TIFF
Substrate: Inkjet Paper
Document Size: 23" x 16"
Document Type: 1-bit adaptive bitonal
Document Format: 300dpi TIFF
Substrate: Inkjet Paper
Document Size: 23" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Newspaper
Document Size: 23" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Inkjet Paper
Document Size: 23" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Newspaper
Document Size: 23" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Inkjet Paper
Document Size: 23" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Newspaper
If you need to scan CAD, GIS or MAP documents the Colortrac challenge will help you find the right scanner technology based on your own unique preferences.
A series of typical wide format document types will be displayed in sequence with two images shown side-by-side. One image scanned by SingleSensor and one by CCD.
Choose the image you prefer by clicking on the “Select” button underneath. If you cannot see a difference, you should select “No preference” in the middle bottom of the screen to continue.
Document Size: 23" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Inkjet Paper
Document Size: 23" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Inkjet Paper
Document Size: 23" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Inkjet Paper
Document Size: 23" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Inkjet Paper
Document Size: 36" x 24"
Document type: Greyscale Scan
Document Format: 300dpi TIFF
Substrate: Clear Acrylic Film
Document Size: 24" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Inkjet Photo paper
Document Size: 36" x 24"
Document type: Greyscale Scan
Document Format: 300dpi TIFF
Substrate: Clear Acrylic Film
Document Size: 24" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Inkjet Photo Paper
Document Size: 36" x 24"
Document type: Greyscale Scan
Document Format: 300dpi TIFF
Substrate: Clear Acrylic Film
Document Size: 24" x 16"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Inkjet Photo Paper
If you need to scan graphic or photographic documents the Colortrac challenge will help you find the right scanner technology based on your own unique preferences.
A series of typical wide format document types will be displayed in sequence with two images shown side-by-side. One image scanned by SingleSensor and one by CCD.
Choose the image you prefer by clicking on the “Select” button underneath. If you cannot see a difference, you should select “No preference” in the middle bottom of the screen to continue.
Document Size: 23" x 15"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Newspaper
Document Size: 23" x 15"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Newspaper
Document Size: 12" x 12"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Gloss Photo Paper
Document Size: 12" x 12"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Gloss Photo Paper
Document Size: 33" x 23"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Paper
Document Size: 12" x 15"
Document type: Full Color Scan
Document Format: 300dpi TIFF
Substrate: Polyester
Document Size: 33" x 23"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Paper
Document Size: 12" x 15"
Document type: Full Color Scan
Document Format: 300dpi TIFF
Substrate: Polyester
Document Size: 33" x 23"
Document type: Full Color Scan
Document Format: 300dpi sRGB TIFF
Substrate: Paper
Document Size: 12" x 15"
Document type: Full Color Scan
Document Format: 300dpi TIFF
Substrate: Polyester
Now let us help you pick the perfect scanner for your needs
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