Fix: Word Extremely Slow with Large Documents
By GenText Editorial Team 2026년 4월 2일 performance
빠른 답변
Switch to Draft view (View > Draft), disable background spell checking, compress images, and consider using master documents to split your content into smaller files.
Why Large Documents Slow Down Word
Word loads the entire document into memory and processes it continuously. The larger the file, the more resources it needs.
단계별 해결
Step 1: Switch to Draft View
Draft view is significantly faster than Print Layout:
- Go to View > Draft
- Images appear as placeholders, reducing rendering load
- Use Print Layout only when you need to check final formatting
Step 2: Disable Background Proofing
- Go to File > Options > Proofing
- Uncheck Check spelling as you type
- Uncheck Mark grammar errors as you type
Step 3: Compress All Images
- Click any image in the document
- Go to Picture Format > Compress Pictures
- Select Apply to all pictures in this document
- Choose 150 ppi (good for printing) or 96 ppi (screen only)
- Check Delete cropped areas of pictures
- Save the document
Step 4: Use Master Documents
For very long documents (dissertations, reports):
- Go to View > Outline
- Use Show Document in the Master Document group
- Break your document into subdocuments by chapter
- Each subdocument is a separate file that loads on demand
Step 5: Remove Unused Styles and Formatting
- Press Ctrl+A to select all
- Go to Home > Styles and apply Normal to clear overrides
- Reapply only the styles you need
예방 Tips
- Insert images as linked files instead of embedded when possible
- Use paragraph styles instead of manual formatting
- Avoid excessive use of text boxes and shapes
- Save in .docx format (not .doc) for better compression
자주 묻는 질문
How large is too large for a Word document?
Word can technically handle files over 500 MB, but performance degrades noticeably above 25-50 MB or 100+ pages with images. If your document exceeds this, consider splitting it.
word slow large-document performance