Sounding chart → point data

Stop tracing soundings by hand

An automated extraction engine that replaces a full day of manual CAD digitizing. It reads the depths straight out of the PDF — drawn as geometry or set as text — and returns easting, northing, depth and confidence per point.

* Timing is based on a single-page vectorized PDF with roughly 2,000 soundings.

Vector sounding PDFs only. Scanned raster images, flattened bitmaps, paper charts, and OCR/AI-read charts are not supported.

For Tender Estimation & Verification Only. Extracted datasets are not certified hydrographic products and must be verified by a licensed professional surveyor prior to field operations.

Drop PDF here

vector PDF · one sheet up to 25 MB

Add a PDF and accept the terms to convert.
What we convert

PDF data we support

Sounding charts draw depth in a handful of ways. Here's what the engine reads today, and what's next.

supported now

Numeric, vector-drawn

Each depth is a real number placed as vector text over its mark — geometry, not pixels.

supported now

Numeric, as text labels

Depths placed as plain text annotations rather than marks anchored to the drawing's geometry — common on CAD exports and typed overlays.

coming soon

Contour / isobath lines

Depth expressed as labelled contour bands rather than individual sounding points.