Why Word’s Right-to-Left Text Alignment Breaks With Mixed Languages

When you type a document that mixes right-to-left languages such as Arabic or Hebrew with left-to-right languages such as English or French, the text alignment may appear broken. Paragraphs that should be right-aligned instead show scattered characters or uneven spacing. This happens because Word applies different paragraph direction and keyboard language rules to each script, and the default settings do not automatically reconcile them. This article explains the technical reason for the misalignment and provides clear steps to fix it using Word’s built-in bidirectional text tools.

Why Mixed-Language Text Breaks Right-to-Left Alignment

Word uses the Unicode Bidirectional Algorithm to handle text that flows in two directions. When you type a right-to-left language like Arabic, Word sets the paragraph direction to right-to-left automatically. However, when you insert a left-to-left word or number, Word sees that character as having a different directional property. The algorithm then reorders the characters on the screen, which can cause the paragraph to appear left-aligned or to have characters scattered across the line.

The root cause is that Word respects the direction of each character rather than the direction you intend for the paragraph. For example, if you type an English word in the middle of an Arabic sentence, Word may treat that English word as a left-to-left segment and push it to the left edge of the paragraph, breaking the right alignment. This behavior is by design in the Unicode standard, but Word provides controls to override it.

Additionally, if you have not installed the proper keyboard layout for the right-to-left language, Word may default to left-to-left paragraph direction for all new paragraphs. This causes the entire document to align left, even when you type right-to-left text. The steps below address both the paragraph direction setting and the keyboard layout requirement.

How the Paragraph Direction Setting Works

Word has a dedicated button on the Home tab in the Paragraph group that sets the paragraph direction. The button shows a paragraph symbol with an arrow pointing either left or right. Clicking it toggles the direction for the selected paragraph. When you set a paragraph to right-to-left, Word reorders the text so that the first character appears on the right side of the page. However, if a left-to-left character appears, Word may still push that character to the left unless you also change the reading order.

The Role of Reading Order

Reading order is a separate setting from paragraph alignment. Alignment determines whether text sits on the left margin, right margin, or center. Reading order determines the visual flow of characters within the paragraph. For right-to-left languages, you want reading order to be right-to-left so that the cursor moves from right to left as you type. Word combines reading order and alignment; if the reading order is left-to-left but alignment is right, the text will still appear broken. The fix is to set both the paragraph direction and the reading order to right-to-left.

Steps to Fix Right-to-Left Text Alignment With Mixed Languages

Follow these steps to correct the alignment in an existing document or to set the defaults for new documents. The steps assume you have the right-to-left language installed in Windows. If not, complete the keyboard layout installation first.

Install the Right Keyboard Layout

1. Open Windows Language Settings
   Press Windows + I to open Settings. Click Time and Language, then Language and Region.
2. Add a Language
   Under Preferred Languages, click Add a Language. Search for the right-to-left language such as Arabic or Hebrew. Select it and click Next. Ensure the option for installing the language pack and keyboard layout is checked. Click Install.
3. Switch to the New Keyboard Layout
   On the taskbar, click the language indicator (usually says ENG) and select the right-to-left language. Alternatively, press Windows + Spacebar to cycle through installed keyboards.

Set Paragraph Direction in Word

1. Select the Problem Paragraphs
   Click and drag to select the paragraphs that show broken alignment. To select the entire document, press Ctrl + A.
2. Apply Right-to-Left Paragraph Direction
   On the Home tab, in the Paragraph group, locate the Right-to-Left Text Direction button. It shows a paragraph symbol with an arrow pointing to the right. Click it. The selected paragraphs should now align to the right.
3. Check Reading Order
   If alignment still appears broken, click the same button again to toggle. In some versions of Word, the button changes the reading order as well. If the text still scatters, use the keyboard shortcut Ctrl + Shift + Right Arrow to force right-to-left reading order for the selection.

Set Default Paragraph Direction for New Documents

1. Open the Styles Pane
   On the Home tab, click the small arrow in the bottom-right corner of the Styles group to open the Styles pane.
2. Modify the Normal Style
   Right-click Normal in the Styles pane and choose Modify. In the Modify Style dialog, click Format at the bottom and select Paragraph.
3. Set Direction to Right-to-Left
   In the Paragraph dialog, under General, set Alignment to Right. Under Indentation, set Direction to Right-to-Left. Click OK twice. All new documents based on the Normal template will now default to right-to-left alignment.

If Word Still Has Issues With Mixed-Language Alignment

Even after applying the steps above, some users encounter persistent alignment problems. The following subsections cover common scenarios and their fixes.

Numbers and Dates Appear Left-Aligned in a Right-to-Left Paragraph

Numbers in Word are treated as neutral characters by the Unicode algorithm. They inherit the direction of the surrounding text. If a number appears left-aligned, it is likely because the paragraph direction is set to left-to-left for that specific number. Select the number and press Ctrl + Shift + Right Arrow to force right-to-left reading order for that character. Alternatively, use the Home > Paragraph > Right-to-Left Text Direction button again for the entire paragraph.

Pasted Text From Another Source Breaks Alignment

When you copy text from a webpage or a PDF, the pasted text may carry hidden formatting that overrides paragraph direction. To fix this, paste the text using Keep Text Only. On the Home tab, click the Paste dropdown and select Keep Text Only. Then apply the right-to-left paragraph direction as described above. If the text still breaks, use the Clear All Formatting button on the Home tab before setting direction.

Word Automatically Switches Back to Left-to-Left After Typing a Left-to-Left Word

This behavior occurs because Word changes the keyboard layout automatically when it detects a left-to-left character. To prevent this, you can disable automatic keyboard switching. Go to File > Options > Advanced. Under Editing Options, uncheck the box that says Automatically switch keyboard to match language of surrounding text. Click OK. Now Word will keep the right-to-left keyboard layout even when you type English words.

Right-to-Left vs Left-to-Left Paragraph Direction: Key Differences

Item	Right-to-Left	Left-to-Left
Default alignment	Right-aligned	Left-aligned
Cursor movement	Moves from right to left	Moves from left to right
Character ordering	First character on the right	First character on the left
Mixed language handling	Requires explicit reading order override	Default for left-to-left scripts

You can now control text alignment in mixed-language Word documents by setting the paragraph direction and reading order correctly. Install the appropriate keyboard layout for the right-to-left language first. Then use the Home > Paragraph > Right-to-Left Text Direction button or the Ctrl + Shift + Right Arrow shortcut to force right-to-left alignment. For persistent issues with numbers or pasted text, apply the Keep Text Only paste option and disable automatic keyboard switching in File > Options > Advanced. These settings ensure that your right-to-left text stays aligned regardless of the languages you mix in the same paragraph.