/50-asset-resize

name: 50-asset-resize
description: "SOP resize va adapt asset tu 1 master design ra du kich thuoc cho tat ca kenh (feed, story, reel, cover, ads placement): bang kich thuoc chuan 2025-2026, 3 chien luoc scale-crop / re-compose / rebuild, quy tac safe zone, naming file. Kich hoat khi nhac: resize asset, du kich thuoc, adapt kich thuoc, bang kich thuoc chuan, safe zone."
metadata:
  version: 1.0.0
  category: operations
license: MIT
triggers:
  - "resize asset"
  - "resize design"
  - "du kich thuoc"
  - "adapt kich thuoc"
  - "bang kich thuoc chuan"
  - "safe zone"
  - "repurpose design"
output: "File .md — resize map theo kenh voi strategy va priority tung kich thuoc, quy tac re-compose, safe zone, naming + folder, checklist final. Designer resize xong khong can hoi lai."
related:
  - 41-campaign-asset-list
  - 42-brief-hinh-anh
  - 48-quick-visual-brief
  - 46-brand-guideline
  - 21-audit-ads-performance

Asset Resize

> Resize khong phai keo to keo nho — moi ti le can re-compose de hierarchy van dung. 1 master design tot → 10+ variants: day la khau tiet kiem thoi gian nhieu nhat cua design production, va la viec dau tien sau campaign (repurpose winner o D+2).

Thu thap thong tin

Doc asset list (`41-campaign-asset-list`) neu co. Neu thieu, hoi toi da 4 cau:

1. **Master design la gi?** Link file goc (Canva/Figma) + kich thuoc va kenh ban dau? 2. **Can resize ra kenh / kich thuoc nao?** Liet ke het — hay lay theo asset list? 3. **Element nao khong duoc mat?** Text, CTA, logo, khuon mat, san pham — co element nao gan canh khong? 4. **Duoc phep crop noi dung khong,** hay phai giu nguyen toan bo?

Nguyen tac

1. **Luon resize tu file goc (master)** — khong resize tu file da resize (chat luong giam dan). 2. **Element quan trong khong duoc crop o bat ky kich thuoc nao** — focal point, CTA, logo phai con nguyen. 3. **Moi ratio can chien luoc rieng** — khong ap 1 cach cho tat ca. 4. **Khong giu du noi dung sau resize → bao Leader quyet dinh bo element nao,** khong tu quyet. 5. **Repurpose winner ngay sau campaign (D+2)** — de lau mat context. 6. **Cap nhat trang thai vao asset list** sau moi kich thuoc xong.

Quy trinh

Buoc 1 — Phan tich master

Xac dinh: focal point la gi; safe zone cua tung element (text, CTA, logo cach canh bao nhieu); dieu gi CO THE crop (background, texture) va KHONG DUOC crop (message, khuon mat, san pham, CTA).

Buoc 2 — Chon strategy cho tung kich thuoc dich

| Strategy | Khi nao dung | Cach lam | |----------|--------------|----------| | Scale & Crop | Ratio gan nhau (1:1 → 4:5, 16:9 → 1.91:1) | Giu nguyen layout, crop bot background | | Re-compose | Ratio khac vua (1:1 → 16:9, landscape → cover) | Dich chuyen element de fit ratio moi, giu hierarchy | | Rebuild | Ratio khac han (1:1 → 9:16, feed → email) | Lam lai tu dau tren canvas moi, giu concept + mau + copy |

Buoc 3 — Resize theo thu tu uu tien

Lam kich thuoc kenh chinh truoc (thuong Feed 1:1), sau do den cac kich thuoc con lai theo priority trong resize map.

Buoc 4 — Kiem tra, dat ten, upload, update

Check tung file theo final checklist → dat ten dung convention → upload dung subfolder → update trang thai asset list.

Bang kich thuoc chuan 2025-2026

Social media

| Loai | Kich thuoc | Ti le | Kenh | Ghi chu | |------|-----------|-------|------|---------| | Feed post vuong | 1080x1080px | 1:1 | Facebook, Instagram | Kich thuoc lam truoc tien | | Feed post doc | 1080x1350px | 4:5 | Instagram, Facebook | Chiem nhieu man hinh hon tren mobile | | Story / Reels | 1080x1920px | 9:16 | FB/IG Story, Reels | Safe zone 250px top/bottom | | TikTok video/thumbnail | 1080x1920px | 9:16 | TikTok | Safe zone 150px top / 300px bottom | | Facebook cover | 820x312px | ~2.6:1 | FB Page | Mobile crop 2 ben — de noi dung o giua | | LinkedIn post | 1200x627px | ~1.91:1 | LinkedIn | | | YouTube thumbnail | 1280x720px | 16:9 | YouTube | |

Ads (Meta)

| Loai | Kich thuoc | Ghi chu | |------|-----------|---------| | Feed ads | 1080x1080px | Dung cho ca FB + IG | | Story ads | 1080x1920px | Noi dung cach mep ~14% | | Carousel | 1080x1080px | Toi thieu 2, toi da 10 card | | Link post banner | 1200x628px | |

Email / Zalo / Website

| Loai | Kich thuoc | Ti le | Strategy thuong dung | |------|-----------|-------|----------------------| | Email header | 600x200px | 3:1 | Rebuild | | Email hero | 600x400px | 3:2 | Scale & Crop | | Zalo OA cover | 1200x500px | 12:5 | Scale & Crop | | Website hero desktop | 1440x600px | 2.4:1 | Re-compose | | Website hero mobile | 375x300px | 5:4 | Rebuild |

Tai lieu

| Loai | Kich thuoc | Dung khi | |------|-----------|----------| | Slide deck 16:9 | 1920x1080px | Presentation, pitch | | A4 doc / ngang | 210x297mm / 297x210mm | Report, proposal in |

Quy tac re-compose

**Landscape / vuong → doc (→ 9:16):**

• Logo: giu vi tri theo brand guideline (thuong bottom-right)
• Headline: chuyen len top 1/3
• CTA: luon o bottom 1/3 nhung tren safe zone
• Safe zone story/reels: 250px top/bottom; TikTok: 150px top / 300px bottom

**Vuong → email (600px):**

• Tang font size neu text qua nho o width moi
• Don gian hoa visual — bot element phu
• CTA button toi thieu 44x44px

**→ cover (FB/Zalo):**

• Noi dung chinh don vao vung giua — 2 ben se bi crop tren mobile
• Khong dat text sat mep

Naming va folder

• Ten file: `[Campaign]_[Kenh]_[KichThuoc]_[Version]_[Status].jpg`
• Vi du: `KhoaHocQ3_FB_1080x1080_v1_APPROVED.jpg`
• Folder:

/[Brand]/Campaigns/[TenCampaign]/Assets/Final/
  Facebook/  TikTok/  Email/  Zalo/  Website/  Archive/

Cau truc ket qua

Ten file: `asset-resize-[campaign]-[YYYYMMDD].md`

# Resize Map — [Ten campaign]

## Master design
| Hang muc | Chi tiet |
|----------|----------|
| Master file | [link goc] |
| Kich thuoc goc | |
| Focal point | |
| Element khong duoc mat | |

## Resize map
| Kich thuoc | Ti le | Kenh / dung cho | Strategy | Priority | Trang thai |
|-----------|-------|-----------------|----------|--------