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PDFViewer AI
AI PDF Markup for AEC

PDFViewer AI— a simpler Bluebeam, free to start

Read, Measure & Mark Up Construction PDFs in Your Browser

Open a PDF FreeHow It Works
“Every person who touches a drawing shouldn't need a Windows license to do it. Reading and marking up a plan set is the most common job in construction, and it was locked behind a desktop seat. We built PDFViewer AI to open that up: any plan, any device, free to mark up.”
Al DramAl DramFounder of Blueprints AIEx-Planning Commissioner
Why PDFViewer AI

Why PDFViewer AI?

Read, mark up, and measure construction drawings in your browser or on iPad — the essential Bluebeam workflow, simplified and free to start.

  • Runs in Your Browser

    Open a plan set on any device — nothing to install, no Windows required, no per-seat license.

  • iPad + Stylus

    Mark up drawings by hand with an Apple Pencil — in the office or out in the field.

  • Free to Start

    Open, view, and mark up PDFs for free. Upgrade only when you need measure and takeoffs.

Markup & CommentsMeasure to ScaleQuantity TakeoffsRevision CompareStamps & CloudsFill & SignCloud CollaborationiPad Ready
Features

Everything You Need to Mark Up a Sheet

The everyday toolkit for construction drawings — markup, measure, takeoffs, and compare, all in the browser.

  • Markup & comments

    Highlights, text, callouts, shapes, revision clouds, and stamps — with threaded replies.

  • Measure to scale

    Calibrate to the drawing scale, then measure length, area, and angle.

  • Quantity takeoffs

    Count and total quantities right on the sheet — no spreadsheet juggling.

  • Compare revisions

    Overlay two versions and see exactly what changed between them.

  • Fill & sign

    Complete and sign forms, RFIs, and submittals, then export a flattened PDF.

  • Cloud collaboration

    Share a sheet by link and mark it up together in real time.

How It Works

Open, Mark Up, Share

Three steps, no install. Drag in a plan set and start working.

  1. Open any PDF

    Drag a plan set into your browser or open it on iPad. Multi-sheet sets stream fast — no install, no account needed.

  2. Mark up & measure

    Annotate with the full markup set, measure to the drawing scale, and run quantity takeoffs right on the sheet.

  3. Share or export

    Send a markup link to collaborate in real time, or export a clean, flattened PDF to hand off.

Customers

Built for the Field and the Office

What teams using PDFViewer AI say.

We were buying a desktop seat for everyone who touched a drawing. PDFViewer AI opens the same plan set in the browser, marks up on the iPad in the field, and the takeoffs are right there — for a fraction of the cost.
Preconstruction LeadGeneral contractor, Denver
  • It opens our whole drawing set instantly on the iPad — the super marks up sheets on site without a laptop.
    Project ManagerDenver, CO
  • Takeoffs in the browser saved us buying another desktop seat for every estimator.
    EstimatorSan Diego, CA
  • Revision overlay caught a wall that moved between addenda — that alone paid for Pro.
    Project ArchitectPortland, OR

Free

To open & mark up

Browser + iPad

Nothing to install

Measure & takeoff

Built in

Pricing

Free to Start, Pro When You Need It

Markup is free forever. Pay only when you need measure, takeoffs, and team features.

  • Free

    $0/forever

    Open, view, and mark up any PDF.

    Open a PDF
    • Unlimited PDF viewing
    • Markup, comments & stamps
    • Works on iPad with a stylus
    • No install, no account needed

  • ProPopular

    $12/month

    The full toolkit for one user.

    Start Free Trial
    • Everything in Free
    • Measure & scale tools
    • Quantity takeoffs
    • Compare revisions (overlay)
    • Fill & sign

  • Team

    $10/user · mo

    Shared projects for your whole team.

    Contact Sales
    • Everything in Pro
    • Shared project workspaces
    • Real-time collaboration
    • Admin & access controls
    • Priority support

Free forever for viewing and markup — upgrade only for measure and takeoffs

Comparison

Desktop Bluebeam vs. PDFViewer AI

The markup, measure, and takeoff workflow you know — without the Windows install, the per-seat license, or the learning curve.

PDFViewer AI

  • Runs in any browser — nothing to install
  • Open the same sheet on iPad with a stylus
  • Free to open, view, and mark up
  • The essential tools, simplified
  • Share a markup link in one click
  • Always up to date — no version upgrades
Get Started

Desktop Software

  • Windows install, per-seat license
  • Tied to one machine
  • Paid before you can try it
  • Feature sprawl and a learning curve
  • Email files back and forth
  • Manual upgrades every release
FAQs

FAQs

Straight answers about the browser app, iPad, tools, and pricing.

Open Your First Plan Set — Free

Drag in a PDF and start marking up in seconds. No install, no account, no card.

Open a PDF Free
Get Started

Get early access

Tell us a bit about your project and we'll be in touch.