Features:

Working with drawing fragments:
The ability to copy parts of the drawing to the clipboard in both raster (BMP) and vector (EMF) format.
The selected area can be printed separately from the rest of the drawing.
The selected area can be saved to a separate file (DXF, PDF, BMP and other formats).
Editing drawings:
ABViewer allows you to edit not only standard CAD formats such as DWG and DXF, but also vector files: PLT, SVG, CGM. The program contains all the tools of a professional editor, which makes it possible to work in ABViewer as well as in "heavy" editors, such as AutoCAD or Compass.
Conversion possibilities:
Copying data in BMP, EMF/WMF format to the clipboard.
Export drawings to raster formats BMP, JPEG, GIF, TIFF with convenient settings.
Saving vector data when exporting to PDF, DXF, PLT, SVG, CGM, SWF, WMF, EMF formats.
! Important: When using the Cropping Rectangle tool, the conversion will be performed only for the corresponding part of the drawing.
Batch conversion and printing
If you have a lot of files that need to be converted to another format or printed, then you don't have to spend a lot of time on it. ABViewer has the ability to simultaneously convert and print in batch mode - using the same settings for all files.
Fast loading and scaling of large black and white raster files:
ABViewer uses know-how to work with 1-bit (black and white) raster formats. Huge files with sizes of 20 by 15 thousand pixels are loaded in less than a second and are scaled almost instantly, which is very convenient when working with scanned drawings in TIFF format.
Sizing tools:
The ability to quickly visually adjust the scale factor for taking measurements – no more additional calculations on the calculator!
Changing lengths, areas and perimeters.
Working with CAD files
You can hide all sizes or texts with a single mouse click
Easy switching between files
Binding to objects has a large number of settings and works not only when editing drawings, but also when using "rulers"
Measuring distances in the drawing, including setting the scale factor.
Viewing and editing in 3D mode
Viewing in six orthogonal projections and four isometric views.
Automatic rotation of the uploaded CAD file by a specified angle.
Working with layers
Color and black-and-white modes for CAD files
Setting the background color
DWG/DXF/SVG/CGM Arcs and Circles can be drawn as smooth curves and stored in EMF as Arcs and Ellipses of Metafiles, which makes it possible to scale them without loss of quality
Setting the number of line segments when drawing a circle, arc, ellipse, and spline
Combining drawings into a single file.
The ability to view the structure of CAD files.
Support for SHX fonts, including UNICODE and BIGFONTS.
File Search
The Bookmarks and Explorer panels provide quick file navigation. The "Thumbnails" subroutine makes it possible to view all files in the directory before opening them, including viewing DXF, PLT and other files that are not shown by Windows or ordinary viewers. You can navigate through the files opened in ABViewer very quickly thanks to the modern organization of documents in tabs.
File Navigation
Dynamic scaling of the drawing using the mouse wheel, similar to AutoCAD, Text search functions and dots will quickly move you to the desired part of the drawing. If you only need the outline of the part in the drawing, then you can remove all texts or dimensions by pressing one key – now you do not need to open layers and change visibility for this operation.
Redline
The "Redline" mode or drawing comments are additional information that is superimposed on the drawing image, but does not affect the base file. In this mode, you can use all the elements of the editor. Comments together with the base file can be printed or converted to another format. Multiple comment files can be attached to a single base file. Additional features of this mode allow you to select the save path to the mark files and ensure their automatic loading.
Print
The print function has very great possibilities. You can print either a single file or a group of files with the specified settings. The Preview dialog box contains a large number of settings, for example, to adjust the width of the lines, color and DWG/DXF layers, to determine the values of zero width. Mosaic printing allows you to display images on any number of pages of various formats with the required scale, for example, very large images (A0, A1, etc.) can be divided into many smaller pages of various formats for subsequent gluing into a single canvas. Any element of the "mosaic" can be printed independently of the others. Thus, if one page turns out to be damaged (for example, due to printer problems), you can reprint this page separately. In addition to printing the entire file, it is possible to print the selected area (the "Cropping Rectangle" tool allows you to select the necessary area to print it) and print the visible space. Color drawings can be printed with good quality on a black and white printer (without gray halftones). There is a set of frames for inserting when printing.
Predefined sizes for standard formats (ISO-A; DIN: A4, A3, A2, A1, A0; US: A, B, C, D, E).
Export to formats
Adobe Acrobat Docum ent (*.pdf)
Adobe Flash (*.swf)
AutoCAD™ DXF (R2000): (*.dxf)
Bitmap Files: (*.bmp)
Computer Graphics Metafile: (*.cgm)
GIF (*.gif)
Hewlett-Packard HPGL: (*.plt)
JPEG: (*.jpg)
TIFF (*.tiff)
Scalable Vector Graphics: (*.svg)
Windows Metafiles: (*.wmf)
Windows Enhanced Metafiles: (*.emf)

Supported formats:

A single tool for viewing, editing and converting files
Support for DWG, DXF, PLT, TIFF, SVG, CGM, IGES/IGS*, STEP/STP*, STL*, 3DS* and other industrial formats (* to view 3D files, you need to install a free add-on)
Printing large formats, for example A1, on an A4 printer
VERSATILITY that allows you to do all the operations necessary in practice when working with design and project documentation
The lightness, speed and power of a professional product
Supported formats
ABViewer can be associated with all supported formats.
Supported CAD formats:
AutoCAD™:
* DWG - all versions (from 2.5 to 2011 inclusive)
* DXF ASCII all versions
* Template Files: DWT
* Autodesk Design Web Format: DWF
Hewlett-Packard HPGL: PLT, HGL, HG, HPG, PLO, HP, HP1, HP2, HPGL, HPGL2, GL2, PRN, SPL
Scalable vector graphics: SVG
Metafile of computer graphics: CGM
Adobe Acrobat Docume nt: PDF
Encapsulated Post File: EPS
Adobe Post : PS
Supported Bitmap images:
Bitmaps: BMP, RLE, DIB
Badges: ICO
JPEG Images: JPG, JPEG
Compuserve GIF: GIF
Images of Arts & Letters thumbnail: GED
Autodesk Images: CEL, PIC
CALS Raster: CAL
Dr. Halo Images: CUT, PAL
GFI fax Images: FAX
Images of Kodak Photo-CD: PCD
Paintshop Pro Images: PSP
Photoshop Images: PSD, PDD
Portable network graphic Images: PNG
Portable pixel/gray map Images: PPM, PGM, PBM
SGI Images: BW, RGB, RGBA, SGI
SGI Wavefront Images: RLA, RPF
TIFF Images: TIF, TIFF
Truevision Images: TGA, VST, VDA, WIN
ZSoft Paintbrush Images: PCX
Supported vector images:
Metafiles: WMF
Extended Metafiles: EMF
Supported 3D Formats (3D Viewers)
AutoCAD™: DWG
Drawing Exchange Format: DXF
3DStudio (and others): 3DS
Stereolithography: STL (STL Viewer)
Initial Graphics Exchange Specification: IGES/IGS1 (IGES Viewer)
Standard for the Exchange of Product model data: STEP/STP1 (STEP Viewer)
WaveFront and others: OBJ
GNU Triangulated Surface: GTS
Triangular Irregular Network: TIN
ASCI Scene Export: ASE
Blitz 3D: B3D
Ghoul2 (GLM): GLM, GLX, GLA
Pulsar Studio LMTS: LMTS
Lightwave3D object file (6.0 and higher): LWO
Nurbs surfaces: NURBS
NormalMapper: NMF
FSRad OCT: OCT
Stanford Triangle Format: PLY
Virtual Reality Modeling Language: VRML
MDC files: MDC
Quake2: MD2
Quake3: MD3
Doom3: MD5
Half-Life: SMD
Quake3: BSP