Maps, plans, drawings and oversized registers up to A0

Large Format Scanning Services in Pakistan

Mutation sheets, cadastral maps, layout plans and engineering drawings captured in a single pass on dedicated large-format equipment — with scale fidelity preserved, because a plan that cannot be measured is only a picture.

Part of our data digitization services in Pakistan — oversized documents are usually the part of an archive that stops a project.

Why a general scanning vendor stalls here

Stitching four A4 scans together is not large format scanning

Almost every archive contains a tranche of oversized documents — the musavi sheets in a land record room, the layout plans in a development authority, the drawing registers in a works department. They sit in a corner, rolled or folded, and they are usually the reason a digitization project is described as nearly finished for a year.

The shortcut is to scan an oversized sheet in sections on an A3 flatbed and join the pieces in software. The result looks acceptable on screen and is unusable for the purpose the document exists for. Every join introduces a small error in alignment and in scale, and on a map or an engineering drawing that error is the whole point of the document. A boundary measured from a stitched mutation sheet, or a dimension taken from a joined drawing, is not reliable evidence of anything.

A single-pass capture on equipment built for the sheet size avoids that entirely. The sheet goes through once, geometry is preserved across the full width, and what you get back can be measured, overlaid and used as the document was intended to be used.

What we scan

Oversized documents we handle

Anything that a standard office scanner cannot take in a single pass, in the condition Pakistani archives actually keep them in.

Mutation sheets and musavi

Field maps and mutation sheets from revenue record rooms, where the sheet is often decades old, folded along the same lines for years and annotated in several hands.

Cadastral and revenue maps

Village and mauza maps, shajra and settlement maps, captured so boundaries, khasra numbers and endorsements remain legible and measurable.

Town planning layout plans

Scheme layouts, sector plans, sub-division and approved building plans held by development authorities, housing societies and municipal offices.

Engineering and architectural drawings

Structural, electrical, mechanical and civil drawings, including full revision sets, with title blocks and drawing numbers captured for indexing.

Utility and network drawings

Water, sewerage, power distribution and telecom network drawings, where an accurate record of what lies under a road has real operational value.

As-built and site plans

Site plans, demarcation plans and as-built records held by works departments and contractors, often the only surviving record of what was constructed.

Oversized bound registers

Large revenue registers, cash books and ledgers too wide for a sheet feeder, captured on overhead equipment without damaging the binding.

Charts, plates and posters

Organisational charts, geological and survey plates, teaching charts and exhibition material held by institutions, universities and museums.

Rolled and folded documents

Documents stored rolled for decades or folded into files, which need controlled relaxation and flattening before capture is even attempted.

Send us one sheet before you decide

Give us your most awkward map or drawing. We will scan it, return the file, and you can measure against the original before anything is agreed.

Request a Sample Scan

Specifications

Large format scanning specifications

These are the points a works department, development authority or consulting engineer asks before awarding the work.

SpecificationWhat we deliver
Sheet sizesA0, A1, A2, A3 and non-standard widths in between, captured in a single pass without sectioning or stitching
Resolution200 to 600 dpi selected by content. Fine-line engineering drawings and small annotated text captured at higher resolution than general layout plans
Colour modeFull colour, greyscale or bitonal. Colour retained wherever coloured markings, revision annotations, zoning fills or endorsements carry meaning
Scale fidelitySingle-pass capture with geometry preserved across the full sheet width, so dimensions and boundaries can be measured from the image
Media typesPaper, tracing paper, vellum, linen-backed maps, ammonia and diazo prints, laminated sheets and cloth-mounted survey maps
Condition handledRolled, folded, brittle, torn, taped, faded and water-affected sheets, relaxed and flattened before capture
Output formatsTIFF, multi-page TIFF, searchable PDF, PDF/A and JPEG, at the file size and compression your systems can work with
IndexingCapture of drawing number, title, revision, scale, date, project and discipline from the title block, delivered as a loadable index
GIS and CAD useImages prepared for overlay and georeferencing where the output is destined for a GIS, with clean edges and consistent geometry
Scanning locationAt our facility, or on-site where map sheets are under statutory custody and cannot leave the record room

How a project runs

Our large format scanning process

With oversized documents, handling is most of the work. Capture itself is quick once a sheet is ready to be fed.

1

Survey and condition assessment

We count sheets, record sizes, identify media types and assess condition. A collection of rolled linen-backed maps is a completely different piece of work from a drawer of modern plotter prints, and the price should reflect that rather than averaging it.

2

Relaxation and flattening

Rolled documents are relaxed under controlled conditions before any attempt to flatten them. Forcing a long-rolled sheet open cracks it along the curl, and that damage cannot be undone.

3

Repair and preparation

Torn edges stabilised, old adhesive tape dealt with carefully, folds supported and fragile sheets backed where necessary so they can be handled without further loss.

4

Capture route selection

Robust sheets go through large-format roller capture. Brittle, backed, laminated or mounted items go to flatbed or overhead capture instead, because a roller will destroy a sheet that cannot take tension.

5

Scanning and image verification

Single-pass capture at the agreed settings, with each image checked at full width for completeness, focus across the sheet, colour accuracy and legibility of small annotations and title-block text.

6

Title block indexing

Drawing number, title, revision, scale, date and project captured from the title block, so a drawing set becomes searchable rather than a folder of numbered images.

7

Delivery and safe return

Files delivered in the agreed formats with the index, and originals returned flat in protective folders rather than re-rolled, because flat storage is what stops the damage recurring.

Fragile and historic sheets

Handling documents that may not survive another mistake

Many of the maps in Pakistani record rooms are the only copy in existence, and some have not been opened in thirty years. There is no second attempt available.

What we do differently on fragile sheets

  • Controlled relaxation before flattening, never forced opening of a rolled sheet
  • Flatbed or overhead capture instead of roller feed for anything brittle, backed or mounted
  • Handling by trained staff with the sheet supported along its full length
  • Higher resolution and colour capture on fading originals, since this scan may be the surviving record
  • Return flat in protective folders rather than re-rolled

What we will refuse to do

  • Feed a cracked or brittle sheet through a roller to save time
  • Peel laminate or backing off a mounted map without conservation advice
  • Flatten a sheet that is still too dry to open safely
  • Section an oversized document and stitch it when single-pass capture is available
  • Proceed on a damaged original without telling you first and in writing

On-site capture for map rooms

Where revenue map sheets or registry drawings are under statutory custody and cannot leave the building, we deploy large-format equipment and staff to your location and work under your supervision. For land record rooms this is often the only arrangement a department can authorise, and we plan for it rather than treating it as an exception.

Who needs it

Organisations with oversized archives

Land and revenue departments

Musavi sheets, shajra, village and settlement maps alongside the deed and mutation registers they belong with, indexed together so a record and its map are one result.

Delivered project

Archiving and indexing of missing deeds — Punjab Land Records Authority

LAND RECORDS DIGITIZATION →

Housing societies and authorities

Scheme layouts, sector and block plans, sub-division plans and approved building plans, retrievable alongside the plot file they relate to.

Delivered project

Data entry and scanning — newly established housing societies

HOUSING SOCIETY RECORDS →

Works and engineering departments

Drawing registers, as-built records and full revision sets where the paper drawing is frequently the only surviving record of what was actually built.

Utilities and infrastructure

Water, sewerage, power and telecom network drawings, where an accurate digital record prevents damage during excavation and speeds up fault response.

Construction and consultancy firms

Project drawing archives spanning decades, digitised so a historic project can be reopened without searching a storeroom of tubes.

Universities and institutions

Survey plates, geological maps, teaching charts and historic institutional plans held in departmental collections and libraries.

Why Hizbullah Khan & Sons

What matters when the sheet is irreplaceable

Single-pass capture, no stitching

Full sheet width in one pass, so geometry and scale survive. A measurable plan is the entire reason the document was drawn.

Capture route chosen per sheet

Roller, flatbed or overhead decided by media and condition, not by whichever machine is free. The wrong route destroys the original.

Land records experience

We have worked inside revenue archives for a provincial land authority, so musavi sheets and settlement maps are familiar material rather than an unknown.

Title blocks indexed

Drawing number, revision, scale and date captured so a drawing set is searchable. An unindexed set of A0 images is barely easier to use than the tubes.

On-site capability

Large-format equipment deployed to your map room where sheets cannot leave the building, working under your supervision.

Originals returned flat

Returned in protective folders rather than re-rolled, so the damage that made the project urgent does not simply resume.

Common questions

Large format scanning FAQs

What is the largest sheet you can scan?

A0 in a single pass, along with non-standard widths in between the ISO sizes, which is what most Pakistani map sheets and drawing registers actually measure. For anything beyond that width we assess the sheet and advise honestly — sometimes overhead capture is the right answer, and occasionally sectioning genuinely is the only option. Where we do recommend sectioning we tell you what that means for measurement accuracy rather than quietly joining the pieces and calling it a scan.

Can you scan a map that has been rolled up for years?

Yes, and the first stage is relaxation rather than flattening. A sheet left rolled for decades has taken a set, and forcing it open cracks it along the curl permanently. We relax it under controlled conditions until it can be opened safely, then flatten, repair any damage and select a capture route that does not put the sheet under tension. If a sheet is too fragile to open safely even then, we will tell you before attempting it.

Will measurements taken from the scan be accurate?

Single-pass capture at the full sheet width preserves geometry across the sheet, so dimensions and boundaries can be measured from the image. This is precisely why we do not section and stitch — every join introduces alignment and scale error, and on a mutation sheet or a structural drawing that error defeats the purpose of the document. Where the original itself has distorted through age, shrinkage or water damage, that distortion exists in the paper and we will point it out rather than let it be discovered later.

What does large format scanning cost in Pakistan?

Pricing is per sheet rather than per page, and driven by sheet size, media type, condition and the preparation each sheet needs. A drawer of modern plotter prints in good condition is straightforward work. A collection of rolled, linen-backed, torn survey maps requiring relaxation, repair and flatbed capture is many times the effort for the same sheet count. We count and assess the collection first, then quote a fixed cost by condition category so you can see exactly where the money goes.

Can you scan maps at our office?

Yes. We deploy large-format equipment and staff to your location, which for revenue record rooms and court registries holding map sheets under statutory custody is frequently the only permissible arrangement. The work is done inside your premises under your supervision, with sheets returned to their place the same working day. On-site capture costs more per sheet than our facility, so on mixed collections many clients keep only the restricted sheets on-site.

Can the scans be used in GIS or CAD?

Scanned images can be prepared for use in a GIS as raster layers for overlay and georeferencing, and we deliver with clean edges and consistent geometry so that work is straightforward. What a scan does not produce is vector data — converting a scanned map into digitised vector layers, or a drawing into a CAD model, is a separate exercise that involves tracing features rather than capturing an image. We will be clear about which of the two your project actually needs, because the cost difference is substantial.

Can you handle tracing paper, ammonia prints and linen-backed maps?

Yes, and each needs a different route. Tracing paper and vellum are translucent, so capture settings have to prevent the backing showing through. Ammonia and diazo prints are often badly faded and need colour or greyscale capture with contrast handling rather than bitonal, which would lose the faint lines entirely. Linen and cloth-backed maps cannot take roller tension and go to flatbed or overhead capture. Media type is recorded during the survey so the route is decided before a sheet is handled.

Do you index the drawings as well as scan them?

Yes, and without it a drawing archive remains difficult to use. We capture drawing number, title, revision, scale, date, project and discipline from the title block and deliver that as a loadable index, so a user searches for a drawing number and revision rather than opening A0 images one at a time. For revision sets we record the revision sequence so the current drawing is unambiguous and superseded revisions remain traceable.

What file format should we ask for?

For archival retention, TIFF or PDF/A, because both are stable long-term formats and TIFF holds image data without lossy compression. For day-to-day distribution and viewing, PDF is more practical since anyone can open it. Large-format images at high resolution produce substantial files, so on most projects we deliver an archival master plus a compressed access copy, which keeps the authoritative version intact while giving your staff something that opens quickly over a network.

How are our original maps returned?

Flat, in protective folders, with any repairs documented. We do not re-roll sheets that have just been relaxed and flattened, because that undoes the work and restarts the damage. Where you do not have flat storage available we will say so during the survey and set out what is needed, since a properly digitised collection returned to the same tubes in the same damp corner will need the same intervention again in a few years.

Send us your most difficult sheet

We will scan one map or drawing as a sample, return the file, and you can measure it against the original before agreeing anything. Then we count your collection and quote a fixed cost by condition.

+92 331 5119119  ·  051-6123093  ·  info@hizbullahkhanandsons.com
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