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Pipe Construction Management Engineer Exam Photo: Spec and How to Create It

Make an application photo for the Class-1/2 Kanko Seko exam that meets JCTC rules exactly — 4:3 ratio 35×45mm — from a smartphone shot, for ¥200.

  • Pay after preview · refund guaranteed
  • Matches the official spec (verified 2026-05-26)
  • Print at any Japan conbini
Official spec data
Dimensions45mm × 35mm
Face lengthNot specified
Top marginNot specified
BackgroundPlain background — white or light color recommended, no shadows, patterns, or gradients
Shoot-by windowTaken within 6 months of application
Official issuerJapan Construction Training Center (JCTC)

View the official source ↗(Last verified: 2026-05-26)

Only photos taken within the last 6 months are valid — check when your current photo was taken.

Turn a phone shot into a photo that meets this exact spec. Preview the result first — then pay ¥200. Full refund if it's rejected.

Create with this spec

Verbatim official spec

Below is the verbatim official spec from the Kanko Seko exam guide published by the Japan Construction Training Center (JCTC), shown in the original Japanese. The same spec applies to both Class-1 and Class-2.

  • 「正面上半身像の高さと幅の比率が概ね4:3」
  • 「6ヵ月以内に撮影したもの(白黒でも可)」
  • 「正面、無背景、鮮明であること(焦点が合っていること)」
  • 「明るさやコントラストが適切で影のないもの」
  • 「前髪で目元や輪郭が隠れていないこと / 眼鏡の光の反射やフレームが目にかかっていないこと」
  • 「サングラスやマスク、帽子等を着用していないもの / 笑顔でないもの(歯が見えていないもの)」

Why this spec matters

Pipe Construction Management Engineer (管工事施工管理技士) is a national qualification under the Construction Business Act, covering installation management for HVAC, plumbing, sanitary fixtures, and gas systems — the "piping" side of building construction. Roughly 16,000-20,000 candidates per year take Class-1 or Class-2 combined (FY2024 figures: ~8,700 for Class-1 second-stage + ~7,500 for Class-2) — many are working engineers at MEP contractors. The application photo must follow the official spec: "upper-body portrait at roughly 4:3 ratio", "taken within 6 months (B&W allowed)", "front-facing, plain background, sharp focus", and "no smile (teeth not visible)" — otherwise the upload is rejected. The Civil Engineering Construction Management Engineer exam, administered by the same JCTC, shares the exact same submission page and photo spec — if your photo is within 6 months, you can submit the same file to both exams (the exam categories themselves differ: civil engineering vs. piping). Note that the similarly named Building Construction Management Engineer (Class-1 and Class-2 alike) is administered by a different testing body (FCIP) with a different application system — the print size is coincidentally 35×45mm but the smile rule and submission flow differ, so reusing photos is not recommended. Follow this page's spec instead.

Price & risk comparison

Ramune AI ID PhotoRefund guaranteed

Preview free → pay only if you like it / full refund if rejected

¥200
Photo booth

No retakes — final on the spot

¥700〜1,000
Photo studio

Booking & visit required

¥1,500〜
Rejected at the counter

1–2 weeks lost

Re-shoot + re-apply

* Other prices are typical market estimates. With Ramune you pay only after seeing the result, with a full refund if the photo is rejected.

Preview your photo free first

How to create it for ¥200

A spec-compliant Kanko Seko (Class-1/2) application photo takes about two minutes with a smartphone and ¥200.

  1. 1

    Take the photo on your smartphone

    Stand against a plain white or light-colored wall in a bright room. Face the camera directly — no hat, no mask/sunglasses, neutral expression (no visible teeth), eyes on the lens. Clear-lens glasses are okay but watch for reflections.
  2. 2

    AI removes background and resizes to 4:3 ratio 35×45mm

    Upload the photo. AI removes the background, detects your face, and auto-crops to the JCTC spec (4:3 ratio, 35×45mm equivalent), with brightness and contrast adjusted appropriately.
  3. 3

    Get both a digital file and a convenience-store print QR

    After payment, a QR code and 8-digit user number arrive by email. Download the digital file directly, and print L-size from ¥30 at 7-Eleven, FamilyMart, Lawson, Ministop, and Poplar nationwide.

Create a Spec-Compliant Kanko Seko Photo for ¥200

AI auto-adjusts your smartphone shot to 4:3 ratio 35×45mm with plain background and appropriate brightness, meeting JCTC rules. You get both the digital file and a QR code for convenience-store printing.

Create now — ¥200

What Ramune AI ID Photo offers

Even for a tight spec like My Number, you can finish the entire shoot → process → print workflow in your browser.

Cropping screen with horizontal and vertical guidelines to adjust face position, width, hairline, and chin in 0.1mm units

0.1mm face position adjustment

Drag the hairline, chin, and face-width guides — or type the millimetre value — to fit inside even a 4mm-wide regulatory window like the My Number spec.

Auto-generated L-size print sheet

Multiple photos optimally arranged on L-size paper with cut marks. Print directly at home or at a convenience store.

AI removes the background automatically

Walls or objects in the original shot are auto-removed; AI converts the photo to the plain background the spec requires.

AI skin smoothing with a natural finish

Auto-reduces blemishes and uneven tone while keeping a natural look. Choose between the original and the smoothed version.

Print at 55,000 convenience stores nationwide

Scan the QR code at the multi-copy machine in Lawson, FamilyMart, Ministop, or Poplar — L-size prints from ¥30. At 7-Eleven, register the image with netprint first.

5-language support, no app required

Japanese, English, Chinese, Korean, and Vietnamese — works entirely in your smartphone browser without installing an app.

Frequently asked questions

What are the online-application photo file requirements for the Landscaping / Piping Construction Manager exam?
The official JCTC (National Institute for Construction Engineering) application guide only specifies an approximate aspect ratio — "front-facing upper-body photo, height-to-width ratio of roughly 4:3" — with no published pixel count or file-size cap (JPEG is required). The application is internet-only and the photo is uploaded as a data file. Ramune's output preserves the print aspect ratio, which sits close to this "roughly 4:3" guideline, so it fits within the required frame when uploaded.
Can I reuse my Doboku Seko (Civil Engineering) photo?
Yes. The Civil Engineering Construction Management Engineer exam is also administered by JCTC and shares the exact same submission page and photo spec (4:3 ratio 35×45mm equivalent, within 6 months, plain background, no smile/visible teeth). If your photo is still within 6 months, you can submit the same file to both exams — only the exam category itself (civil engineering vs. piping) differs. The same applies to other JCTC-administered construction management exams like Telecom Construction Management and Landscape Construction Management.
Can I reuse my Kenchiku Seko (Building) photo?
The photo size is coincidentally the same 35×45mm, but the application systems are entirely separate. Kenchiku Seko is administered by FCIP (requires digital 531×413 px JPEG), while Kanko Seko is administered by JCTC with a different system. Additionally, Kanko Seko explicitly forbids smiles/visible teeth, so a smiling photo intended for Kenchiku Seko cannot be reused. We recommend retaking using this page's spec.
Is the photo spec the same for Class-1 and Class-2?
Yes. Both Class-1 and Class-2 Kanko Seko exams, administered by JCTC, share the same photo spec — 4:3 ratio 35×45mm equivalent, within 6 months, plain background, no hat/mask/sunglasses, no smile (teeth not visible). Only the exam level, schedule, and eligibility differ.
What does "4:3 ratio" mean in millimeters?
The official spec only specifies "upper-body portrait at roughly 4:3 ratio" without an explicit millimeter dimension. Industry convention uses 35×45mm (35mm wide × 45mm tall) as the standard 4:3-ratio ID photo size, and our service outputs at this size. While 30×40mm also satisfies the ratio, we recommend 35×45mm for better file specs and print quality.
B&W photos are allowed — does that put me at a disadvantage?
No. The spec explicitly states "taken within 6 months (B&W allowed)", so B&W photos are formally permitted with no judgment penalty. However, since the spec also requires "appropriate brightness and contrast with no shadows", color photos tend to meet the conditions more easily under modern shooting setups.
What if my photo was the wrong size and got rejected?
No re-shoot needed. Upload your smartphone photo and AI auto-adjusts it to the correct spec in about 2 minutes. Preview free, pay ¥200 only if you like it, full refund if it's rejected — avoiding the 1–2 week loss of a counter re-shoot and re-application.

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Create a Spec-Compliant Kanko Seko Photo for ¥200

AI auto-adjusts your smartphone shot to 4:3 ratio 35×45mm with plain background and appropriate brightness, meeting JCTC rules. You get both the digital file and a QR code for convenience-store printing.

Create now — ¥200

Make yours to this spec

¥200 · pay after preview

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Kanko Seko Photo: 35×45mm Spec | ¥200 — Ramune AI