Professional PDF Overlay Management

Georeference your PDFs, create beautiful map overlays, and share them with your team.

See It In Action

Watch how OverlayApp transforms PDF overlay workflows

Step 1

Upload Your PDF

Drag and drop your OneCall or BeforeUdig PDF. OverlayApp instantly displays it alongside your cadastral map view.

  • Supports multi-page PDFs
  • Automatic georeferencing detection
  • Side-by-side comparison view
Upload PDF and view on map
AI recognizing cadastral boundaries
Step 2

AI Detects Boundaries

Machine vision identifies cadastral boundaries, property lines, and reference points from your PDF with sub-meter precision.

  • Computer vision recognition
  • ASCE 38-22 compliant accuracy
  • Confidence scoring for each detection
Step 3

Snap to Reference Points

Set reference points and watch OverlayApp automatically align your PDF overlay with survey-grade precision in seconds.

  • Two-point automatic alignment
  • Real-time coordinate validation
  • Manual fine-tuning available
Snapping reference points for alignment

No credit card required • 14-day trial • Cancel anytime

Global Basemap Coverage

Official cadastral vector basemaps in many countries

Austria BEV cadastral map

Austria – BEV Maps with Parcels

Official data updated daily. Vector Basemaps including cadastral data.

UK OSGB cadastral map

UK – OSGB Vector Maps

Ordnance Survey data with detailed property boundaries and land registry integration.

Netherlands Kadaster cadastral map

Netherlands – Kadaster Parcels

Official Kadaster land registry data with precise parcel boundaries.

New Zealand LINZ cadastral map

NZ Ortho with Parcels

LINZ Basemaps providing up-to-date Parcel data.

France IGN cadastral map

France – IGN Aerial with Parcels

IGN orthophotos with DGFiP cadastral parcel overlay.

Switzerland swisstopo cadastral map

Switzerland – swisstopo Parcels

Federal swisstopo basemaps with cantonal cadastral surveying data.

Our platform integrates with official surveying and mapping authorities worldwide to provide accurate, up-to-date cadastral boundaries for precise PDF overlay alignment.

Easy Georeferencing

Upload your PDF and place control points on an interactive map to georeference your documents.

Real-time Collaboration

Work together with your team. See changes in real-time and manage permissions easily.

Cloud Storage

Your PDFs and overlays are securely stored in the cloud with automatic backups.

Everything you need for professional mapping

Interactive Maps

View your overlays on high-quality interactive maps

Fast Processing

Process large PDFs quickly with our optimized engine

Enterprise Security

Bank-level encryption and SOC 2 compliance

Ready to get started?

Join thousands of professionals using OverlayApp for their georeferencing needs.