bScaler - PDF Scaling & Mark-up

Scale, measure and mark up PDF drawings in Chrome. Set scale by sheet size or scale bar, measure distances and areas, then export.

bScaler - It's like CAD but for PDF drawings. Turn any PDF drawing into a working scaled drawing, right in your browser. bScaler lets you set a scale, measure distances and areas, read off coordinates and levels, mark up the drawing, and export the result as a PDF, a CSV of survey points, or a DXF for CAD. It runs entirely on your own machine, needs no sign-in, and asks for no permissions - your drawings never leave your computer. Built by Bury Associates Limited, Land & Measured Building Surveyors, for anyone who needs quick, reliable measurements from a PDF plan, elevation or site drawing. SET THE SCALE YOUR WAY - Scale by sheet size and drawing scale (A0 to A4 and custom sizes, common metric and imperial ratios, or your own). - Or scale from a known length or scale bar - click two points, type the real distance, done. - Works in metric (mm, m) or imperial (feet-inches, square feet). MEASURE WITH CONFIDENCE - Distance tool for single lines and running (multi-point) dimensions. - Area tool with live area and an optional perimeter readout. - Point tool to drop numbered count markers, read off X/Y coordinates against a coordinate system you set, or read off levels against a datum you set. - Give every survey point a point number and a feature code, ready for export. - Type an exact distance or a circle radius while you draw - just press D. - Ortho drawing: lock to the sheet's square, or set your own two-point direction. SNAP TO WHAT MATTERS Snapping locks your points onto the drawing's own vector geometry AND onto mark-ups you have already added: - Endpoints and corners - Mid-points - Along a line - Intersections - Perpendicular from your last point - Centres of circles, arcs and rectangles - Nearest point on any line Turn each snap type on or off in Settings or in the drawing pop-up. MARK UP THE DRAWING - Add multi-line text, lines, rectangles and circles. - Pick any colour (default red), or let measurements colour themselves automatically. - Text stays sized to the drawing and scales naturally as you zoom. - Edit anything from the side list: change colour and properties, resize text, adjust a circle's radius, or renumber a point. CLEAR, EDITABLE LABELS - Drag the total, the perimeter and every individual segment or side length label to a tidy new position, each with a leader line back to the shape. Double-click a label to snap it home. - Use the Labels tool to cycle what each measurement shows - value, all lengths, area plus perimeter, value only, labels off, or lines only. - Cycle survey-point labels through value, number and code, X and Y coordinates, and more - or switch individual fields on and off per point with the edit pencil. - Reshape an area on the fly: drag the small mid-point handle on any edge to add a new corner. LAYERS (FOR PDFs THAT HAVE THEM) When a PDF contains layers, a Layers tab appears alongside Measurements & Mark-ups: - Turn any layer off and on with a clear eye icon. - Isolate a single layer to see it on its own. - "Off by clicking": press the button, then click a line in the drawing to switch off its whole layer. - With the Select tool, click a line in the original PDF to see which layer it belongs to. ZOOM AND NAVIGATE - Zoom with the scroll wheel, a zoom box, or fit-to-page. - Set a working area so Fit always zooms straight to the part of the drawing you care about. - Hold Space (or middle-mouse) to pan while you work. - Full undo and redo. EXPORT YOUR WORK - Marked-up PDF: your measurements, points and mark-ups drawn back onto the original sheet, with shaded areas, clear linework and all your labels. - Survey points to CSV: point number, feature code, X, Y and level. - CAD-ready DXF: exports the original drawing plus your measurements and mark-ups, on tidy layers, respecting colours and text sizes, so the whole drawing comes across to your CAD package. - CSV and DXF exports respect any coordinate system you have set, so everything lands on the correct grid. PRIVATE BY DESIGN bScaler deliberately requests zero permissions. There is no account, no upload and no tracking. Everything happens locally in your browser, so confidential drawings stay with you. IMPORTANT - ACCURACY PDFs are not always accurate. A measurement is only as good as the scale you set and the quality of the source drawing. Always check critical dimensions against a properly scaled source before relying on them. bScaler is provided as a free aid and no liability is accepted for decisions made using it. ABOUT BURY ASSOCIATES Bury Associates Limited are Land & Measured Building Surveyors working throughout the UK. Our services include topographical surveys, measured building surveys (CAD & Revit), 3D modelling and BIM, land registry drawings, setting out, Matterport 3D tours, reality capture and digital twins, underground services tracing and CCTV drainage surveys, and monitoring surveys. Find out more at www.buryassociates.co.uk. bScaler is a free tool. We hope you find it useful - feedback is always welcome.