Convert DWG to PNG online

Drop the DWG file below, click Export, then PNG, and the drawing is rasterized from its vector geometry into a lossless PNG, 3000 pixels on the longest side, on a white background. You choose what is in the picture by selecting an area or taking the whole drawing. Nothing is uploaded: the drawing is rendered in your browser tab, on your device.

How to export a DWG to PNG

PNG is the right image format for CAD line work: it is lossless, so a one-pixel line stays a crisp one-pixel line, and it compresses flat white areas very well. The export is not a screenshot: the image is rendered from the vector geometry, so the steps are about choosing what goes in, not about your screen.

1. Open the .dwg in the drop zone above. R14 through 2018+ files are supported; the conversion to DXF and the rendering both happen on your device.
2. Switch layers off in the layers panel if the image should not show dimensions, hatches, or construction lines. Hidden layers are left out of the PNG.
3. Click Export, then PNG, and select the area: drag a rectangle over the detail you want, or take the whole drawing.
4. The browser downloads the image: layer colors on a white page, 3000 pixels on the longest side, regardless of the dark or light theme on screen.

The same steps work for a DXF, and for an image with a smaller file size you can save the PNG as a JPG afterwards; DWG to JPG explains when that trade is worth it.

DWG to PNG in high resolution

The PNG is rasterized from the vector geometry at a fixed size: the longest side is 3000 pixels, and the shorter side follows the proportions of the area you selected. Screen size, zoom level, and display DPI do not change that. So the way to get more detail per pixel is to export less drawing.

• Export the detail, not the sheet. A whole floor plan at 3000 pixels wide gives each room a few hundred pixels; selecting one room gives that room all 3000. Drag the rectangle around the part people will actually look at.
• Export several tiles. For a long section or a site plan, make two or three exports of adjacent areas rather than one image of everything.
• Hide what is not needed. Dimensions, hatches, and text on a crowded sheet become gray noise at image scale; switch those layers off first.

If you need a poster-size raster, such as 300 DPI at A1 (about 7000 pixels wide), 3000 pixels is not enough. AutoCAD's PLOT with the “PublishToWeb PNG.pc3” plotter lets you set the pixel size directly, and the ezdxf drawing add-on for Python renders a DXF through matplotlib with any DPI you pass to savefig. Both start from a DXF, so a DWG goes through DWG to DXF first.

What a PNG of a drawing keeps

A PNG is pixels. That is a feature when you want a picture that opens anywhere, and a limitation when someone later asks for the layers back.

The PNG is always drawn on a white page with the real per-layer colors, no matter whether the viewer is in dark or light mode on screen. Drawings made on a black CAD screen often use white, yellow, and cyan lines; on white those come out faint or invisible, so check the image before you send it.

Other DWG to image converters

When a 3000-pixel PNG is not enough, these are the standard tools. All are neutral choices; pick by what is installed.

• AutoCAD: PNGOUT saves selected objects as PNG at screen resolution; PLOT to PublishToWeb PNG.pc3 gives a pixel size you control. Also writes JPG, BMP, and TIFF the same way.
• DWG TrueView: free from Autodesk, Windows only, same plot-to-image route without editing.
• LibreCAD: File → Export → Export as image, with width, height, and background options. Reads DXF, so convert first.
• QCAD Professional: a command-line dwg2bmp tool that reads DWG and DXF and writes PNG, JPG, or BMP at a chosen size, which is the usual answer for servers.
• Online converters (CloudConvert, Zamzar, and similar): they work by uploading the drawing; fine for public files, not for anything confidential.

Batch export of many drawings

For a folder, scripting beats clicking. The usual pattern is an AutoCAD script that opens each file and plots to the PNG plotter, or a short Python loop: convert all DWGs to DXF with the ODA File Converter, then run ezdxf's matplotlib backend on each file with the DPI you need. QCAD's dwg2bmp accepts a directory as well. For a handful of files, dropping them here one at a time is faster than setting any of that up.

Going the other way, turning a PNG scan into a drawing, requires tracing rather than conversion: see PNG to DWG.

Frequently asked questions