bScaler

1. Choose the Select tool and click any measurement or mark-up; its edit panel opens on the right.
2. Change its colour and properties, resize text, adjust a circle's radius or an arrow's length, or rename a point.
3. Click Duplicate to drop an exact copy alongside, already selected - just drag it into place.
4. To add a point to a line, polygon, distance or area, hover over an edge and drag the small mid-point handle that appears.
5. Drag a whole element to move it, or press Delete to remove the selected one.

The Point tool covers counting, coordinates and levels:

1. Count markers - click to drop numbered points that increment automatically.
2. Point ID - give an alpha-numeric ID and an increment. The increment applies to the number only: S12 with an increment of 2 becomes S14, while a purely alphabetic ID like AB simply steps to AC.
3. Feature code - add a code to each point ready for export.
4. Coordinates - set a coordinate system under Settings > Coordinate & datum, then each point reads off its X and Y. On a map grab this is automatic.
5. Levels - set a datum, then read off a level at each point.
6. Use the edit pencil to switch each label field on or off per point.

1. Pick the Labels tool.
2. Click a distance or area to cycle what it shows: value, every individual length, area plus perimeter, value only, labels off, then lines only.
3. Click a survey point to cycle its label through value, ID and feature code, X and Y, and more.
4. Drag any label to tidy it - a leader line stays connected back to the shape. Double-click a label to snap it home.

Snapping locks each point onto real geometry - the drawing's own vector lines and everything you have already added.

1. In Settings (or the drawing pop-up) turn on the snap types you want: endpoints and corners, mid-points, along a line, intersections, perpendicular, centres, and nearest point on a line.
2. As the cursor nears a feature, a clear marker shows exactly where the point will lock on.
3. Snapping works the same way when you drag an existing point to a new position.
4. On scanned or image drawings, with no vector line-work, you can still snap to anything you have drawn.

Ortho keeps your lines square as you draw. Choose a mode in Settings or the drawing pop-up:

1. Off - draw freely.
2. Square to the sheet - lock to the drawing's own horizontal and vertical.
3. Square to the grid - once you have aligned your coordinate axes, lock to that grid instead of the sheet.
4. Two-point - select it and immediately pick two points to set your own direction; lines then lock parallel and perpendicular to that line. Re-pick the two points at any time.

Selecting any Ortho mode switches off the previous one.

1. Pick the Text tool and click where you want the note; it is selected automatically, so you can type straight away.
2. Type multi-line notes - the text is sized to the drawing, so it scales naturally as you zoom.
3. Drag the note to move it, or drag its corner handle to resize.
4. With the note selected, press the left or right arrow keys to rotate it about its base in 5-degree steps.

1. Pick the Polygon tool and click round the shape; click the first point again, or double-click, to close it.
2. In the edit panel, turn it into a smooth curve that runs through your points.
3. Give it a transparent fill, then use the opacity slider to set exactly how solid the fill is.

1. Pick the Shapes tool for a two-point rectangle or circle - click one corner (or centre) and the opposite point.
2. Press R for a three-point rotated rectangle, or C for a circle set through three points.
3. While drawing, press D to type an exact size or radius.
4. Rectangles can take a transparent fill, adjustable with the opacity slider in the edit panel.

1. Pick the Arrow tool and click the start point.
2. Click the end point for any length, or press D and type the exact length before you place it.
3. The arrow has a clean line with a slim, tidy head.
4. Its length shows in the edit box afterwards, and you can type a new length there to reset it.

1. Pick the Section tool and draw the cut line; press D to set an exact length if you need one.
2. Fixed-size direction arrows are added automatically, with a label that increments A, B, C...
3. Choose whether it looks one way or both ways using the Labels button, and whether the label sits at one or both ends.
4. The section arrowheads keep their bold, drawing-standard look.

1. With no drawing open, choose Map grab to open the built-in satellite map.
2. Search a postcode or address to fly to your site.
3. Frame the site inside the clear 16:9 capture box - the rest of the view is shaded so you see exactly what you will get - and zoom with the scroll wheel, drag to pan, and Box-zoom to an area, exactly as you navigate the drawing itself.
4. Capture, and the aerial comes in already correctly scaled, ready to measure and mark up. Every point you drop reads off its position automatically. You can also georeference an existing drawing from the map: pick two points on the map, then the same two on the drawing, to set its scale and real-world coordinates.
5. It uses free standard imagery out of the box; paste a free Mapbox token for sharper imagery if you want it.

1. Turn on the scale bar and title block in Settings; they appear bottom-right and top-right by default.
2. Select and drag either one anywhere on the drawing; drag the title block's corner handle to resize it.
3. Double-click the title to edit its text, or double-click the scale bar to set its length exactly (or leave it on Auto).
4. Your title text is remembered between drawings, and both print into the exported PDF exactly where you left them.

1. Choose Import KML and pick your file; its points, lines and polygons arrive as editable survey points, lines and areas.
2. Points keep their KML name as their point ID, so stations come across already labelled.
3. Import before you have a drawing and the map opens framed on the KML, with its extent outlined in yellow - grab the aerial and your features drop straight onto it, correctly placed.

1. Open Settings > Coordinate & datum.
2. Choose how map-grab coordinates are shown: latitude and longitude, UTM, or a national grid - British National Grid, Irish Transverse Mercator, France Lambert-93, Netherlands RD, Switzerland LV95, New Zealand NZTM and more.
3. Leave it on Auto and bScaler picks the right grid for wherever you grabbed.
4. Aerial coordinates are a guide, not a survey, so they show to the nearest metre by default - raise the decimal places whenever you need finer figures.

1. When a PDF contains layers, a Layers tab appears alongside Measurements & Mark-ups.
2. Turn any layer off and on with its eye icon, or isolate a single layer to see it on its own.
3. Press Off by clicking, then click a line or a piece of text in the drawing to switch off its whole layer.
4. With the Select tool, click a line or text in the original PDF to see which layer it belongs to.