To add text in iMovie, select a clip, photo, or background in the timeline, open the Titles or Captions panel, choose a style, and type your own wording. iMovie then places that text directly over the selected media, and you can adjust font, color, size, and on-screen duration from the inspector below the preview. On iPhone and iPad the workflow lives in the bottom toolbar, while on macOS the same controls appear in the viewer overlay. iMovie handles basic in-project text very well for opening titles, lower thirds, captions, and end credits, but it does not measure text length in characters or count fixed-width positions for you. That gap matters whenever your titles, chapter markers, or credits need to line up column-style, repeat across many clips with identical width, or carry short identifiers such as episode or scene numbers. A separate utility that produces exact-length padded strings gives you the consistent labels you can paste straight into iMovie without retyping or guessing.

how to add text in imovie
How to Add Text in iMovie With Exact-Length Labels

What iMovie Text Tools Cover

iMovie treats text as an overlay that rides on top of an existing clip, photo, or background. Three categories cover most editing needs. Title styles add short, styled text suitable for opening titles, chapter markers, and lower thirds. Caption styles attach animated subtitle text to dialogue or narration, with several bundled looks to choose from. End credits let you stack one or several credits blocks over a closing clip. You can edit the wording of any style after placing it, change its font, color, and size, and reposition it by dragging in the preview. iMovie does not expose a character count, a fixed-width ruler, or a way to snap text to a measured position, so any alignment that depends on consistent label width has to happen before the text reaches iMovie.

Add Text in iMovie: iPhone, iPad, and Mac

The exact taps and clicks differ across Apple's three iMovie builds, but the underlying model is the same: pick a clip, pick a style, type your wording. Use the platform-specific steps below before reaching for a padding tool, then paste in any pre-formatted label you made with Text Padder.

On iPhone or iPad

  1. Open the project in iMovie and tap the clip, photo, or background where the text should appear.
  2. In the bottom inspector, tap Titles or Captions depending on whether you want a styled title or an animated caption.
  3. Swipe through the bundled styles and tap the one you want to apply.
  4. Tap the on-screen text placeholder and type your wording. Tap outside the text box to confirm.
  5. Drag the text in the preview to reposition it, then drag the duration handles at either end of the timeline to change how long the text stays on screen.
  6. Tap the style again to change font, size, or color from the inspector controls.

On Mac

  1. Open the project in iMovie and select a clip, photo, or background in the timeline.
  2. Click the Titles button that appears at the top of the viewer and pick a style from the dropdown.
  3. Double-click the text placeholder inside the preview, type your wording, and click outside to confirm.
  4. Drag the text in the preview to move it. Use the duration handles in the timeline to extend or shorten how long the text appears.
  5. Open the Text inspector (the small T icon) to change font, size, color, alignment, and outline.

Once the text looks right, you can keep editing it directly inside iMovie. Pre-formatted labels from Text Padder are useful only when the wording itself needs to be a fixed character length; otherwise, type straight into the iMovie placeholder.

When iMovie Titles Need Fixed-Length Labels

iMovie does not enforce a minimum or maximum label width, so any time you want your on-screen text to line up across many clips, you have to prepare the strings before they reach iMovie. A handful of recurring jobs benefit from exact-length text.

  • Episode and chapter markers. Numbered cards such as "EP 03", "EP 10", and "EP 12" look uneven when each one starts at a different horizontal position. Padding them to the same total length keeps every marker visually identical.
  • Aligned credits columns. Two-column credits such as "DIRECTOR ............ JANE DOE" depend on the dot run having a predictable count. A padded dot string keeps the column tidy even when names are different lengths.
  • Lower thirds with stable width. Repeated interview clips where the name and title should sit in the same spot across cuts work better when each label has the same character count.
  • Test fixtures and mockups. When you are building a template or showing a client how a finished sequence will look, padded placeholder strings make the layout preview more honest.
  • Short bordered labels. Strings wrapped with a one-character pattern such as "*" or "·" for a quick decorative border need a fixed total length to line up across many entries.

Use Text Padder to Build Exact-Length Labels

Text Padder extends any string to a precise length by adding a padding pattern to the left, right, or both sides, and it does so without uploading anything to a server. Follow the three documented steps below to produce a label ready to paste into an iMovie title or caption.

  1. Enter the source text and the exact target length in Unicode code points. Paste your wording, such as "EP 3", into the source field and set a target like 8. The target must be a whole number from 0 through 1,000,000.
  2. Type a nonempty padding pattern and choose left, right, or both sides. A simple pattern like "0" right-pads numbers, while a pattern like "-·-" both-pads short labels. The pattern repeats from its first character until the target length is reached and stops there.
  3. Pad the text, verify the reported length and preview, then download the TXT result. Run the tool, check the preview and the reported code-point count match your target, then copy or download the padded label. Paste it into the iMovie placeholder on your iPhone, iPad, or Mac.

Because Text Padder measures length by code point rather than by byte or visual width, most single emoji count as one. A combining mark still counts separately from its base character, and joined emoji such as country flags or skin-tone sequences can count as several. The reported code-point figure is the exact unit the tool uses to decide where to stop padding, and it stays visible in the result so you can confirm the length before importing into iMovie.

Padding Sides and When to Use Each

The side you pick changes where the original text sits inside the padded result. The table below summarizes the three documented behaviors so you can match the choice to your iMovie layout.

SideWhere the source text ends upBest fit in iMovie
RightSource stays at the start, padding runs after it.Right-aligned numbers such as padded episode codes that sit flush against the right edge of a card.
LeftPadding runs before the source, source sits at the end.Right-aligned names in credits where the value should be at the far right of the column.
BothPadding splits evenly on both sides; if the missing length is odd, the right side gets the extra code point.Centered titles or decorative borders where the source label should sit roughly in the middle.

The "both" rule is fixed and deterministic: an odd remainder always goes to the right. That means if the missing length is five code points, you get two on the left and three on the right. Use this predictability when you want every label in a series to look the same, and remember that the same input values always produce the same output string because the tool uses no random data.

Limits That Matter for iMovie Projects

Text Padder is designed to keep things predictable, and a few limits matter when you prepare labels for iMovie. The target length cannot exceed one million code points, which is far more than enough for any title card but worth knowing if you ever try to pad a very large block of text. If your source text is already as long as the target, the tool returns it unchanged; it never truncates to force a shorter result. Set a longer target whenever you need actual padding. A zero target is valid and simply leaves any nonempty source unchanged. The padding pattern cannot be empty when characters need to be added, but spaces, punctuation, line breaks, and emoji are all valid pattern content because they are treated as ordinary visitor-supplied text. Changing any field also clears the previous result so an old preview cannot be mistaken for a new one.

Common iMovie Label Mistakes to Avoid

Two habits catch people out when they first try to pad labels for video projects. Counting characters by eye in iMovie is unreliable because proportional fonts do not give each code point the same display width, so a label that looks balanced on screen can still be one or two code points short of your target. Trust the reported code-point count from Text Padder instead. The other habit is treating code points and bytes as the same thing. UTF-8 characters can take different numbers of bytes, and a code-point target does not guarantee a byte target. If you ever need a length measured in storage bytes rather than text characters, use a format-aware byte utility rather than Text Padder. Inside iMovie itself, neither limit causes problems, because iMovie reads text as characters, not as bytes. Also remember to review whitespace-sensitive output carefully before pasting, since visually subtle padding is still real text and will show up in your iMovie render.

Once your padded labels look right in the Text Padder preview, paste them into iMovie on whichever device you are editing on, and they will line up consistently across every title, caption, or credit card in your project.