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Created addWatermarkPage.ts following imageOverlayPage patterns. | Dev Logs

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Date: 2026-08-08 12:43 Summary: Created addWatermarkPage.ts following imageOverlayPage patterns.

[question] In /Users/xuli/vscodeai/onlinefreetools create src/pages/addWatermarkPage.ts following src/pages/imageOverlayPage.ts patterns.

Slug: add-watermark. Export renderAddWatermarkPage.

UI:

  • Single image dropzone
  • Text input for watermark (default SAMPLE)
  • Font size number, color picker, opacity range, rotation degrees, position 9-grid (like overlay)
  • Format JPEG/WebP/PNG + quality + jpeg bg color
  • Apply, Download, Sample, Clear
  • Preview canvas

Client logic:

  • Draw base image full size; save/restore for text with translate to anchor, rotate, globalAlpha, fillText centered on anchor
  • Position grid sets x/y as fraction of canvas (tl=0.1,0.1 ... br=0.9,0.9 etc) or pixel anchors
  • Soft limits 25MB/8192
  • loadSample(): gradient base + text SAMPLE diagonal; auto apply; call on init
  • i18n prefix tool_add_watermark_*
  • IG rules 4, usecases 3
  • References: MDN fillText
  • FAQ should distinguish from image-overlay (logo image vs typed text)

IMPORTANT: properly closed JS strings only. Document key functions with comments.

Do not edit catalog/index/i18n. Return path when done.

[try to solve] Created src/pages/addWatermarkPage.ts, exporting renderAddWatermarkPage, slug add-watermark.

Page structure matches imageOverlayPage.ts: single-image dropzone, watermark text (default SAMPLE), font size/color/opacity/rotation, nine-grid position (tl=0.1,0.1 … br=0.9,0.9; manual x/y > 1 switches to pixel anchors), JPEG/WebP/PNG + quality + JPEG background color, Apply/Download/Sample/Clear, preview canvas.

Client: drawImage base, then save → translate anchor → rotate → globalAlpha → centered fillText; soft limits 25MB/8192; loadSample() builds a gradient base + SAMPLE diagonal watermark and auto applyWatermark() on init.

i18n key prefix tool_add_watermark_*; IG rules 4 + use cases 3; References include MDN fillText. Did not change catalog/index/i18n.

[actions]

  • src/pages/addWatermarkPage.ts (added)
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