Compare PDF revisions · Check drawings MIIDEL

Checking drawings? I've had enough.

Compare faster. Miss less. MIIDEL shows the differences between drawing revisions in color, so every change gets checked.

Try a drawing comparison

…That said — how about just one round of spot-the-difference?

There are three differences between the two drawings. Tap them on the AFTER drawing.

Pick the one closest to your drawings

BEFOREBefore
A3 S=1:100X1X2X3X4Y1Y2Y314,0004,5004,5005,0004,0004,0008,000Office33.6 m²Meeting16.8 m²Reception16.8 m²Storage33.6 m²ProjectOffice Bldg. ExtensionDrawing1F PlanScale1:100Dwg No.A-101Date2026.10.02Appr.  Chk.  Dsgn.N4,500
AFTERAfter
A3 S=1:100X1X2X3X4Y1Y2Y314,0004,5504,5005,0004,0004,0008,000Office33.6 m²Meeting16.8 m²Reception16.8 m²Storage33.6 m²ProjectOffice Bldg. ExtensionDrawing1F PlanScale1:100Dwg No.A-101Date2026.10.02Appr.  Chk.  Dsgn.N4,5004,550

Found 0 / 3

Hint: a door, a dimension, a column

Sample drawings and comparison images for illustration. To compare your own drawings, ask us about a free trial.

The difference? MIIDEL finds it.

The name MIIDEL comes from the Japanese miideru — to bring what is hidden into view. Give it the before and the after, and it shows you every difference in color.

Doctors lay today's X-ray over an earlier one to see what has changed. Why not do the same with drawings and documents? Overlay two versions, let what is unchanged fade back, and let the differences stand out. That idea is the heart of MIIDEL.

Look

Load both files — before and after — in full. Documents hundreds of pages long and large-format drawings included.

Align

Skew, distortion, and differences in scale or layout are corrected automatically, so the two sheets line up exactly.

Color it

On the combined sheet, unchanged parts fade to gray, additions turn red and deletions turn blue. What changed is obvious at a glance.

How long did that one puzzle take you?

A real drawing set runs to dozens of A1 sheets.

Things get missed

One digit on a dimension line, one cell in a table — the smaller the change, the easier it is to miss. MIIDEL shows the differences in color so every change gets checked.

It takes forever

A set of site drawings can run to dozens of A1 sheets. MIIDEL speeds up matching long page runs and large sheets, so you get straight to the changes that matter.

It depends on who's checking

Move from checks that rely on one person's experience and concentration to checks the whole team can share. Export the comparison as a PDF and review it together.

Load. Wait. Look. That's it.

  1. Load two files

    Pick the before and after files. Your everyday drawings and images work as they are.

    • PDF
    • JPEG / PNG / TIFF
    • AutoCAD DXF / DWG
    • DocuWorks
  2. Auto-align

    MIIDEL corrects scan skew and differences in scale and placement before comparing, and can help with documents whose layout or page structure differs. Ask us about the details.

  3. Check the differences in color

    Unchanged in gray, added in red, deleted in blue. You review the content with the differences in front of you, then save the result as a PDF to share or keep on file.

Comparison runs on your own PCRuns on Windows 11 (64-bit)Handles very large sheets and long page runs

For every job that involves spotting the difference.

Drawing comparison

Match drawings before and after a design change and check differences in dimensions, text and geometry. For design, production engineering and quality teams.

Proof checking

Lay the marked-up proof over the corrected one to confirm that every instruction was applied — and that nothing else changed.

Digital prepress checks

Compare post-RIP data or final proofs against the original artwork. For confirming changes in print and packaging.

Document revisions

Find what changed between versions of specifications, contracts and other documents. Useful for long documents and version control.

"The way it shows changes is revolutionary."

From a MIIDEL userWinner of the Monodzukuri Nippon Grand Award (Award of Excellence, Prime Minister's Prize)

Read the Daiwa House Industry case study →

Next, your drawings.

Want to compare real work files on your own PC? Ask us about a free trial. We can also arrange an online demo or a sample comparison. There is no need to send confidential drawings — start by talking to us about how to evaluate.

Requirements: Windows 11 (64-bit). Comparison runs locally on your PC. Contact us for details on environments and licensing.

FAQ

Can I use it with confidential drawings?

Comparison runs on your own PC. We will suggest an evaluation approach that fits your security requirements — there is no need to send confidential drawings. Talk to us first.

How much does it cost?

Pricing depends on the number of users and how you deploy it. Contact us for a quote.

Does it run on a Mac?

MIIDEL runs on Windows 11 (64-bit). Ask us about options for your environment.

Can it compare documents other than drawings?

Yes — PDFs, images and other documents. Tell us the file formats and the task, and we will confirm what is covered.

Checking drawings? I've had enough.

So leave it to MIIDEL. Check differences in drawings and documents faster, with less missed. Request the brochure for an overview, or ask us about a trial with your own data.