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TIFF to DWG Converter

Drop a .tiff or .tif blueprint scan below and download a DWG with editable polylines and real text. Free, unlimited, no sign-up.

output

Drop images here, or click to choose

Conversion starts immediately. Up to 100 MB per file. You can also paste a screenshot

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Open in Nasji, let AI clean it up

How to convert TIFF to DWG

Upload your TIFF file

Drop your .tiff on the converter, click to browse, or paste a screenshot with Ctrl+V.

We trace the lines

TIFF's CCITT Group 4 scans arrive already binary, so cleanup mostly de-speckles rather than thresholds before the skeleton is walked.

Download a real DWG

You get a native 2018-format DWG with editable LWPOLYLINE geometry on its own A-SKETCH layer — editable geometry, ready to draft on, not a picture to trace again.

What you get: lines, not pictures

A floor plan with solid walls, furniture and text — and the CAD geometry this converter produces from it. Walls keep both faces, every thin line is a single editable polyline, and labels become real editable text.

Example TIFF floor plan before conversion — Input: raster image (solid walls, thin furniture lines, text)

Editable DWG vector drawing produced by the converter — Output: editable DWG polylines (walls outlined, lines centerlined)

About TIFF to DWG conversion

If a drawing was ever archived properly, it is a TIFF. Wide-format blueprint scanners, document management systems and every municipal records office standardised on it decades ago, usually with CCITT Group 4 fax compression — lossless, bilevel, and astonishingly compact for line work. That is the happy case for this converter: a Group 4 TIFF is already pure black and white, so there is no threshold decision to get wrong and cleanup is mostly a matter of removing scanner speckle before the skeleton is walked.

Two TIFF-specific caveats. First, both extensions are the same format — .tif and .tiff are accepted identically. Second, TIFF is a container that can hold many pages, and drawing archives routinely put a whole sheet set in one file. Only the first page is converted here, so split multi-page archives before uploading; every conversion is free and unlimited, so running twelve sheets through costs nothing but twelve uploads.

Frequently asked questions

Are multi-page TIFF files supported?

Only the first page is converted. Drawing archives often store an entire sheet set in one TIFF, so split it into single pages first — with any PDF/TIFF utility, or IrfanView's batch extract. Every conversion is free and unlimited, so a twelve-sheet set is just twelve uploads.

Is .tif the same as .tiff here?

Identical. Both extensions name the same format, and the pipeline sniffs the file's magic bytes rather than trusting the name, so an incorrectly named file still decodes correctly.

Which TIFF compressions can you read?

Uncompressed, LZW, Deflate, PackBits and CCITT Group 3/4 all decode. Group 4 bilevel scans — the standard for archived blueprints — are the best possible input, because the image is already binary and no threshold has to be guessed.

My scan has speckle and fold marks. Will they be traced?

Isolated specks are filtered during cleanup. Fold lines and creases that read as continuous dark strokes will be traced, because they are genuinely indistinguishable from drawn lines — they land on the A-SKETCH layer, so they are quick to select and delete in your CAD.

Will old blueprint colours confuse it?

Blue-line and sepia prints convert fine: the threshold is computed from each image's own histogram, so a low-contrast sepia sheet gets a different cut than a crisp black-on-white one. Very faded prints are the hard case — scan them at higher contrast if lines drop out.

Convert from a script or an AI agent

The same conversion is one HTTP call — no key, no account, no rate limit. The full machine-readable spec lives at /llms.txt.

curl -X POST https://nasji.com/api/convert \
  -F "[email protected]" \
  -F "target=dwg" \
  -o drawing.dwg