How to Translate Google Slides Without Losing Formatting

The Formatting Problem

You've spent hours building a polished Google Slides deck — branded colors, careful alignment, bold keywords, custom fonts. Now you need it in Spanish. You open Google Translate, copy-paste slide by slide, and watch your layout fall apart. Bold is gone. Font sizes changed. Text boxes overflow. Alignment is wrecked.

This happens because Google Translate returns plain text. It strips all formatting metadata. If you paste it back into your slide, you get raw text in the default font — none of your original styling survives the round trip.

Why Formatting Breaks During Translation

Google Slides stores text with "runs" — each run is a segment of text with its own style (font, size, color, bold, italic, link). When you copy text out of a slide, you lose the run boundaries. When you paste translated text back, Google Slides treats it as a single run with default styling.

The only way to preserve formatting is to translate text within the Google Slides API, replacing each text run's content while keeping its style properties intact. That's exactly what Slide Buddy does — it reads each text run, sends the text to Google Translate, and writes the translated text back into the same run, preserving font, size, color, bold, italic, and alignment.

Translation Methods: Formatting Comparison

Gemini in Google Slides can describe translations in a sidebar chat, but it cannot modify your slides. You'd still need to manually copy-paste, losing all formatting. See our Gemini vs Slide Buddy comparison.

How to Translate Without Losing Formatting (Step-by-Step)

What Formatting Gets Preserved

Slide Buddy preserves the following formatting properties for every text run:

• Font family — your custom or brand font stays (as long as Google Slides supports it; see our font fallback guide for edge cases)
• Font size — headings stay large, body text stays small
• Bold, italic, underline, strikethrough — all preserved per-run
• Font color and highlight color
• Text alignment — left, center, right, justified
• Hyperlinks — URLs attached to text runs are kept
• Speaker notes — translated separately with their own formatting

What's NOT preserved: Text inside images, charts, or embedded objects. Slide Buddy only translates Google Slides text elements (text boxes, shapes, tables, speaker notes). See what Slide Buddy can and can't translate.

Pro Tips for Format-Safe Translation

• Enable "Shrink text on overflow" before translating. Some languages (German, Finnish, Portuguese) produce longer text that may overflow text boxes. Right-click any text box → Format options → Text fitting → Shrink text on overflow. See our text overflow fix guide.
• Use Google Fonts rather than locally-installed fonts. Google Slides can render any Google Font for any viewer. Local fonts may fall back to Arial for collaborators who don't have them installed.
• Check CJK and RTL slides manually. Chinese, Japanese, Korean text is typically shorter than English (fewer characters), so overflow is rare. Arabic and Hebrew switch to RTL — Slide Buddy preserves the text direction, but check alignment visually.

FAQ