P&ID markup software — PDF Editor

Drawing mark-up for P&IDs, ISOs, GAs and site plans. £125.00 per year — support included.

V.O.S. PDF Editor with a process drawing open

Built for engineering drawings

A desktop mark-up tool for construction and commissioning teams. Open a vendor PDF or a blank sheet, place trade symbols, cloud a revision, white-out a note, measure the line, and keep the mark-up editable until you flatten for issue.

£125.00 per year per licence. That is a start and end date you can see — not an open-ended subscription. Support, maintenance and reasonable development are included while the licence is active. No hidden fees.

On the drawing

  • Pen, line, arrow, shapes, hatch, text, callouts and numbered tags
  • Click-dot revision cloud with a sized scalloped edge
  • White-out vendor notes, then type over them
  • Copy an area of the original sheet, paste, resize and rotate
  • Calibrated length, area, count, angle and radius
  • Compare two revisions — the second drawing overlays in red

In the tool chest

  • P&ID valves, fittings, equipment and instruments
  • Civil / site marks — north arrow, grid bubble, levels, drains
  • Electrical — sockets, lights, DBs, isolators, earth
  • Instrumentation — balloons with tag letters over the number
  • Test-pack legend you can edit on the sheet
  • Save your own valves and hook-ups as My symbols

Who it is for

Construction and commissioning teams who mark up drawings every day and do not want to pay Bluebeam or Adobe subscription prices for a general PDF editor.

Oil and gas first. Civil, building and E&I packs are in the same programme if the work crosses trades.

Licence — £125.00 per year

  • One seat, one year. Trial on request.
  • A start and end date you can see — not an open-ended subscription.
  • Free updates while the licence is active.
  • Assistance and reasonable development included.
  • No hidden or additional fees.

£125.00 per year — try it first

Email admin@vos-ltd.co.uk for a 7-day trial or to buy a licence. Pay by invoice into the business account. No public download of the programme.

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