Scan2CAD raster to vector conversion software features

Features marked in the list below are available in the Pro version of Scan2CAD only.

Scan

Scan from inside Scan2CAD using TWAIN (Acquire).
Use any TWAIN-compliant scanner of any size.
Use any scanner of any size whose software saves standard raster files.
If you have a desktop scanner, you can scan large drawings as a series of "tiles" that you can assemble, merge and vectorize inside Scan2CAD:

  1. Use Acquire to grab scanner-sized "tiles" from large drawings.
  2. Alternatively, load tiles that have been saved as separate raster files.
  3. Re-assemble the drawing using accurate move, deskew and merge tools.
  4. Tidy up and vectorize the drawing in the normal way.
  5. Save As DXF to the same size and scale as the original drawing.
Plus direct support for Colortrac SmartLF scanners.

Load and save raster images

Load and save:
  • BMP
  • CALS (Type 1 - .CAL, .CALS, .GP4, .CG4, .MIL)
  • GIF (not recommended)
  • IMG
  • JPEG (not recommended)
  • PCX
  • PNG
  • TIFF
  • GeoTIFF
Scan2CAD does not support tiled or multi-page TIFF files.
  • Load raster PDF files.

    If the PDF file contains a single raster image, it will be loaded in the same way as any other raster image. If the PDF file contains many raster images, you can step through them and select the one you want to load.

  • Save raster images as PDF files.
In theory the maximum raster image size that Scan2CAD will handle is 32,000 x 32,000 pixels.

This equates approximately to a 13.3 foot x 13.3 foot or 4m x 4m drawing scanned at 200 dpi or a 6.6 foot x 6.6 foot or 2m x 2m drawing scanned at 400 dpi. For most drawings 200 or 400 dpi is optimal.

In practice the maximum raster image size that Scan2CAD will handle is determined by your PC's system resources - for example the amount of physical and virtual RAM it has.

Load black and white, grayscale and color raster images - 1 Bit, 4 Bit, 8 Bit and 24 Bit.
Convert between raster file types - e.g. load a raster image as a BMP file and save it as a compressed TIFF file to save disk space.

View raster images

Zoom into a selected area; zoom about the cursor position; zoom about the screen center; zoom extents; step back through the last ten views.
Pan.
Display a grid of raster pixels.
View the image's color palette, the colors that are used in the palette and a histogram of the colors that are used in the palette.
View raster image statistics - file size, color depth, dpi. Resample.

Edit raster images - raster effects and clean up tools

Most raster effects and clean up tools are color aware and can be restricted to work on a single color. BeforeAfter
Automatically remove speckles caused by dirt, stains etc. (despeckle) or quickly erase dirty areas using area erase and flood fill.
Fill holes.
Thin lines.
Thicken lines.
Thicken pixels - useful for filling dithered lines.
Smooth - removes "hairs" from "hairy-looking" images.
Outline solid raster areas.
Remove speckles of color to make colors more uniform.
Detect edges between different colors.
Simple or Adaptive Threshold - dynamically convert grayscale and color raster images to black and white to get the clearest possible image on the cleanest possible background.
Negate or invert images to make black areas white and white areas black.
Mirror images vertically or horizontally.
Rotate images through 90, 180 or 270 degrees, by user-defined degrees or by fraction of a degree.
One click Auto Deskew, or straighten images to a reference line.
Scale images in the X and or Y directions to make them larger or smaller.
Increase or decrease brightness and contrast.
Crop.
Warp images to user-defined control points (rubber-sheeting).

Edit raster images - raster draw and erase tools

Set pen / eraser thickness and pen color.
Three cursor options - Graphic, Pointer or Guide Line (cross-hairs). Cursor visually shows pen thickness.
Draw or erase pixels (points), lines, ortho lines, rectangles, circles, arcs, Bezier curves, solid filled areas and freehand sketches.
Flood fill.
Enter TrueType font raster text - select font, size, embolden, italicize, move text into logo layouts.

Edit raster images - cut, copy, move and paste

Move areas of the raster image.
Cut, copy and paste within Scan2CAD.
Paste raster images from other applications.

Edit raster images - color palette editing tools

  BeforeAfter
Automatically reduce the number of colors used on the image - makes colors more uniform for color vectorization.
Manually reduce the number of colors used on the image. Display a histogram of colors to help choose which colors to reduce to.
Decrease or increase color depth.
Change one color on the raster image to another.
Change the palette so that it matches the palette in your CAD program.

Vectorization - vector recognition

Identifies continuous lines, dash and dash dot lines, arrow lines, hatch lines, polylines, circles, arcs or Bezier curves and text.
Choose from ten supplied default conversion types for quick and easy results - use the one that best describes your drawing:
  • Architectural.
  • Electrical.
  • Mechanical.
  • CNC Profile.
  • Site Plan.
  • Contour Map.
  • Sketch (traces every detail of a raster image using many short lines).
  • Outline (outlines solid areas of black or color).
  • Scanline (creates an exact vector copy of the raster original. The vector image is made up of many closely spaced parallel horizontal lines).
  • User (your own user-defined settings).

Default conversion types give good results on most drawings but easy to use settings let you control the conversion process if you want to. Settings include:

Center line tracking, outline tracking or both.

   
Center line
Outline
Control whether vectors follow the raster image loosely (produces less vectors) or closely (produces more vectors).

   
Loose
Close
Specify a Gap Jump Distance - Scan2CAD jumps over any gaps in the raster image that are smaller than the value you specify, allowing continuous vectors to be produced over broken raster lines.

   
Gaps
Gaps jumped
Specify a Loose Ends Length - Scan2CAD removes "loose end" vectors shorter than the value you specify.

   
Loose ends
Loose ends removed
Choose to have vectors join or pass at intersections.

   
Join
Pass
Align the vectors to a grid.

   
Not aligned
Aligned
Snap angled lines that deviate slightly from 0 or 90 degrees to 0 or 90 degrees.
Snap angled lines that deviate slightly from 30 or 120 degrees to 30 or 120 degrees.
Snap angled lines that deviate slightly from 45 or 135 degrees to 45 or 135 degrees.
Snap angled lines that deviate slightly from 60 or 150 degrees to 60 or 150 degrees.

   
0 and 90 degree snap off
0 and 90 degree snap on
Optionally identify dash and dash dot lines, arrow lines, hatch lines, polylines, circles, arcs and Bezier curves.

   
Dash line identification off
Dash line identification on

In the illustrations above the raster image is shown in gray and vectors are superimposed in black. Where relevant vector ends are enclosed in small squares.

Save your own conversion settings as default.
Convert the whole raster image, or just part of it. Convert different parts of the image using different conversion settings.
Convert vectors separately or at the same time as text.
Convert one, some or all the colors in a color raster image. RasterVector

or

Vectorization - OCR text recognition and font training

Convert text using OCR - turns text into editable vector text rather than text made up of small lines.      
Raster
Vector
OCR conversion settings include:
  • Set Character Rotation so text is recognized the right way up.
  • Choose Character Set - Standard recognizes all characters, Number recognizes numbers and symbols only.
  • Split touching characters - may improve text recognition where raster characters have bled into each other.
Convert text on the whole raster image, or just part of it. Convert text on different parts of the image using different OCR conversion settings.
Convert text separately or at the same time as other drawing elements.
Train Scan2CAD to recognize a wider range of fonts, including your own non-standard (e.g. hand drawn, stencilled) fonts.

Vectorization - batch vectorization

Specify multiple raster images for conversion at a convenient time - like during lunch or overnight when you are not using your PC.
Batch process includes pre-conversion raster tidy up options - Speckle Removal, Hole Removal, Thicken Line, Thicken Pixels, Smooth.

Create vector TrueType font outlines

  1. Select a font.
  2. Write some text.
  3. The text is converted to 100% accurate vector outlines that you can export to your CAD or CNC program as DXF.

View vectors

Zoom into a selected area; zoom about the cursor position; zoom about the screen center; zoom extents; step back through your last ten views.
Pan.
Display a grid.
A single key or icon click displays the raster image only, vectors only or the vectors superimposed over the raster image (raster overlay).
Fade the raster image so you can see the superimposed vectors more clearly.
View vectors by color or by type. When viewed by type vectors are shown in different colors depending on what they are - continuous lines, dash or dash dot lines, arrow lines, hatch lines, polylines, circles, arcs, Bezier curves or text.
View vector extents by turning on grab points at vector ends or by highlighting an individual vector.
View vector ghosts - see the old position of vectors after you've edited them.
View vector statistics - number of vectors, time taken to do the vectorization.

Edit vectors

Vector editing tools are color aware and can be restricted to work on a single color.
Stretch vectors by dragging grab points at vector ends and arc mid points.
Snap vectors to a grid, to other vectors or to vector end points.
One click vector trim and extend.
Reshape Bezier curves by dragging Bezier control points.
Split a line into two by clicking on it.
Join two vectors together by clicking on the node point between them.
Quickly convert vectors from one type to another by clicking on them:
  • Convert arcs to lines and lines to arcs.
  • Convert Bezier curves to lines and lines to Bezier curves
  • Convert polylines to lines and lines to polylines.
  • Convert continuous lines to dash, dash dot or arrow lines.
  • Convert dash or dash dot lines to continuous or arrow lines.
  • Convert arrow lines to continuous, dash or dash dot lines.
  • Convert hatch lines to continuous, dash or dash dot lines.
Edit vector colors.

Edit vector text

Spellcheck vectorized text for quick and easy editing.
  • Includes a 30,000 word UK and US Design Dictionary.
  • Add words common to your drawings to the Dictionary.
  • Create your own Dictionary in any language.

Simply click on vector text to edit or delete it.
Edit text content, angle, size, origin, color.
Make all the text on the drawing or in a selected area the same height.
Move text.

Draw and erase vectors

Draw on new sheet or trace over raster image (raster overlay).
Set pen color.
Snap to grid, other vectors, vector end points.
Drawing tools include point, line, ortho line, rectangle, circle, arc, Bezier curve, freehand and text.
Erase vectors individually or in a block.

Save vectors

Output DXF files that you can read into any PC CAD, CNC or GIS program including all versions of AutoCAD and LT - no known compatability problems with any PC CAD program.
DXF can be saved to the same size and scale as the original paper drawing.
DXF can be saved with coordinates assigned to a known point.
Attach a raster image to the DXF file. When you load the DXF file into a CAD program that can accept attached raster images both the DXF file and the raster image will be loaded, correctly overlaid. You can also assign a color to the raster image so that it is easily visible beneath the vectors.

A side benefit of this feature is that AutoCAD LT users can use Scan2CAD to load raster images into LT. This is not normally possible as the image insert command in LT is disabled.

Bezier curves can be saved in the DXF file as splines, arcs or polylines.
Save color DXF files. Each color can be saved on a separate layer. Layers can be matched to your CAD program's palette.
Output HPGL plot files.
Output WMF and EMF files.
Save text as an ASCII text file.

Printing

Print all or part of a raster or vector image to fit paper or to scale.

Command line

Automate virtually any sequence of Scan2CAD commands.
Run Scan2CAD from other applications.

Technical support and documentation

Optionally supplied on CD with a comprehensive printed manual.
Interactive video tutorials that run on your PC let you learn Scan2CAD in minutes.
Fast, free email and telephone technical support.

System requirements

Any PC running Windows '98, ME, NT, 2000, XP or Vista.
Minimum 32Mb RAM, but if you are going to be converting large or color raster files, the more RAM your PC has the better.
We recommend a minimum screen resolution of 800 x 600.