redpen
PDF markup & takeoff for construction

Mark up the set. Measure it. Get it done.

Redpen is a fast desktop app for drawings: clouds and RFIs, scaled takeoffs, fixture counts and quantities straight to Excel. Priced so the whole crew can have it, not just the estimator.

No credit card · Free viewer plan forever · Works offline

A-101 First Floor Plan
Redpen showing a floor plan with area takeoffs, a measured partition run and two RFI clouds
Built forGeneral contractorsEstimatorsElectricalMechanical & plumbingDrywall & framingConcrete & siteworkFlooring & finishesArchitects & engineers
How it works

From PDF to quantities in three steps.

No training course, no sales call. If you have used a PDF viewer you can use Redpen.

01
Open the set

Drag in the PDF. Full-size sheets render sharp at any zoom, and big sets stay quick.

02
Set the scale

Autoscale reads the dimensions on the sheet and works out the true scale, even on reduced prints.

03
Measure, count, send

Take off lengths, areas and counts, then export quantities to Excel or send the marked-up PDF.

Review & markup

Cloud it, call it out, track it.

Clouds, callouts, arrows, highlights and stamps that look right on paper. Every markup lands in one list with author, status and comments, so nothing gets lost between the field and the office.

  • Callouts and cloud callouts with leaders
  • Markups list: filter, sort, comment, set status
  • Tool chest for your go-to markups
  • Saves as standard PDF annotations
RFI-014
An RFI cloud and callout on an exam room, with a 24 foot dimension
E-101 First Floor Lighting Plan
Lighting plan with every troffer and downlight numbered by count
Measure & takeoff

Quantities you can put in a bid.

Length, area, perimeter, volume, wall area and counts, all in real units once the scale is set. Totals update as you draw.

Type A troffer34 EA
Type B downlight4 EA
LVT flooring1,784 SF
Partition type 3A58' 8"

From the sheet on the left. One click exports it to Excel.

And the rest of the job

The PDF tools you reach for every week.

Autoscale

Finds the real scale from the drawn dimensions, not the title block note.

AutoCount

Click one fixture, Redpen finds and numbers every match on the sheet.

Export to Excel

Totals by group, page and type, ready for your estimate.

Sheet overlay

Lay one revision over another and see what moved.

OCR

Make scanned sets searchable, then find every 'RTU-3' in seconds.

Redaction

Black out pricing or names for good before you send.

Bates & page stamps

Number submittals and closeout packages in one pass.

Digital signatures

Sign pay apps and change orders with a real certificate.

Bluebeam-style keys

On by default. Your hands already know the shortcuts.

Your drawings stay on your computer. Redpen opens and saves PDFs locally. Nothing is uploaded; your account only tells the app which plan you are on.

Pricing

Straight pricing. No annual lock-in.

Start free. Pay monthly or save with yearly. Cancel from your account page, no phone call.

Free

For subs and owners who need to open, review and comment.

$0forever
No account needed to view
Download
  • Open and view any PDF, any size
  • Clouds, callouts, text, arrows, highlights
  • Markups list with comments and status
  • Print and save to standard PDF
Most popular
Pro

For the estimator, PM or super who lives in the drawings.

$17per month
$199 billed yearly
Start 14-day free trial
  • Everything in Free
  • Calibrate and Autoscale
  • Length, area, perimeter, volume, wall area
  • Counts and AutoCount
  • Takeoff totals and export to Excel / CSV
  • OCR, redaction, Bates stamps, sheet overlay
  • Digital signatures
Team

For estimating departments and project teams.

$21per seat / month
$249 billed yearly per seat
Start 14-day free trial
  • Everything in Pro, for every seat
  • One invoice, one admin
  • Add or remove seats any time
  • Invite teammates by email
  • Priority email support

Prices in USD. Sales tax may apply. 25+ seats? Talk to us.

Questions

Good questions, short answers.

Is Redpen a web app?
No. Redpen is a desktop app for Windows and Mac. It opens big plan sets fast and your PDFs stay on your computer. This website is where you manage your account, seats and billing.
Will my markups open in Bluebeam or Acrobat?
Yes. Redpen saves markups as standard PDF annotations with their own appearance, so Bluebeam, Acrobat and other viewers show them the way you drew them. Reopen the file in Redpen and every setting comes back.
How does the free trial work?
Create an account and you get 14 days of Pro. No credit card. Add a card any time before the trial ends to keep Pro; if you don't, you drop to the Free plan and keep your files and markups.
Can I use it offline on the jobsite?
Yes. Once you are signed in, Redpen works without a connection. It checks in again next time you are online.
Can I switch between monthly and yearly, or add seats later?
Any time, from the Billing page. Changes are prorated automatically. Team admins can add or remove seats whenever the crew changes.
Do you offer purchase orders or invoices?
Yearly Team plans can be paid by invoice. Contact sales and we will set it up.

Put Redpen on your next bid set.

14 days of every feature. No credit card. If it doesn't save you time on the first set, don't keep it.