The basic steps for editing any document

To change a document, you first open it in your editor, make the changes you want, and save the file. The exact steps depend on which editor you are using — Microsoft Word, Google Docs, LibreOffice, or another program — but the core process is the same across all of them.

Start by opening your editor. Then open the document itself using File > Open (or the equivalent in your program). Navigate to where the file is stored on your computer or in your cloud account, select it, and click Open. The document will load into the editor, and you can now make changes to the text, formatting, or layout.

Once you have made your changes, save the file. Use File > Save, or press Ctrl+S on Windows or Command+S on Mac. If you are saving for the first time, you will be asked to name the file and choose where to store it. After that, Save will update the existing file with your changes.

Key Takeaways

  • Every document editor uses File > Open to load a document and File > Save to store your changes.
  • You can edit text by clicking where you want to make a change, then typing or deleting as needed.
  • Formatting tools like bold, italic, and font size are usually in a toolbar at the top of the window.
  • Cloud-based editors like Google Docs save automatically, while desktop editors like Word require you to save manually.
  • If you want to keep the original file unchanged, use File > Save As to save your changes under a new name.

Editing text in the document

Click anywhere in the document where you want to make a change. A blinking cursor will appear at that spot. You can now type new text, or use Backspace to delete text to the left of the cursor, or Delete to remove text to the right.

To change text that already exists, select it first by clicking and dragging across the words you want to change. The selected text will highlight. Then type the replacement text, and the old text will disappear. Alternatively, you can select text and press Delete or Backspace to remove it without typing anything new.

If you make a mistake, use Ctrl+Z (Windows) or Command+Z (Mac) to undo your last action. You can undo multiple times to go back several steps. Use Ctrl+Y or Command+Y to redo an action you just undid.

Changing how text looks

To change the appearance of text — making it bold, italic, larger, or a different color — first select the text you want to format. Click and drag to highlight the words or sentences.

Look for the formatting toolbar, usually a row of buttons near the top of the window. You will see buttons for Bold (usually marked with a B), Italic (marked with an I), and Underline (marked with a U). Click the button that matches the formatting you want. The selected text will change when ready.

To change the font size, look for a dropdown menu that shows a number like "12" or "14" — this is the point size. Click it and select a larger or smaller size. To change the font itself (the typeface), look for a dropdown showing a font name like "Arial" or "Times New Roman", and select a different one from the list.

Saving your changes

After you make changes, save the document so your work is not lost. Press Ctrl+S (Windows) or Command+S (Mac), or go to File > Save. The file will be updated with your changes.

If you are using a cloud-based editor like Google Docs, the document saves automatically as you type. You do not need to press Save manually. Desktop editors like Microsoft Word and LibreOffice require you to save manually — if you close the program without saving, you will lose your changes since the last save.

If you want to keep the original file and save your changes under a new name, use File > Save As instead of Save. You will be asked to give the new file a name and choose where to store it. The original file stays unchanged, and your changes are saved in the new file.

Finding and replacing text

If you need to change the same word or phrase in many places throughout a document, use the Find and Replace tool instead of editing each instance by hand. Press Ctrl+H (Windows) or Command+H (Mac), or go to Edit > Find and Replace.

A dialog box will open with two fields: "Find" and "Replace With". Type the text you want to find in the first field, and the text you want to replace it with in the second field. Click "Replace All" to change every instance at once, or click "Replace" one at a time to review each change before it happens.

This is especially useful when you realize you have misspelled a name throughout a long document, or when you want to change a term that appears many times. It saves time and reduces the chance of missing an instance.

Working with pages and sections

In longer documents, you may need to add page breaks, headers, footers, or divide the document into sections with different formatting. These tools are usually found in the Insert menu or a Layout menu.

To add a page break (a forced break to a new page), place your cursor where you want the break and press Ctrl+Enter (Windows) or Command+Enter (Mac). Alternatively, go to Insert > Page Break. Everything after the break will move to a new page.

Headers and footers are text or page numbers that appear at the top or bottom of every page. Go to Insert > Header and Footer, then type the text you want to appear on every page. Page numbers are usually added the same way — Insert > Page Number — and they update automatically as you add or remove pages.

Protecting and sharing your changes

If you are working on a document with other people, most editors offer a way to track changes so everyone can see who edited what. In Microsoft Word, go to Review > Track Changes > Track Changes to turn this on. In Google Docs, changes are tracked automatically and you can see who made each edit in the version history.

If you want to prevent someone from editing a document, you can protect it with a password. In Word, go to File > Info > Protect Document. In Google Docs, click the Share button and set permissions so people can only view the document, not edit it. This is useful when you have a final version you do not want changed.

Before you share a document, check that it does not contain information you want to keep private. Some editors have a tool to remove hidden metadata (information about who created the file, when it was edited, and so on). In Word, go to File > Info > Check for Issues > Inspect Document. In Google Docs, this information is visible in the version history, which you can review before sharing.

Frequently Asked Questions

What is the difference between Save and Save As?

Save updates the existing file with your changes. Save As creates a new file with a new name or in a new location, leaving the original file unchanged. Use Save As when you want to keep multiple versions of a document or when you want to save a copy under a different name.

Can I undo changes after I have closed and reopened a document?

No. Undo only works within the current editing session. Once you close the document, the undo history is lost. If you saved changes you want to reverse, you will need to edit the document again manually. Some cloud editors like Google Docs keep a version history you can access to restore an earlier version of the file.

How do I change the margins or page size?

Go to File > Page Setup (or File > Print Settings in some editors) to change margins, page size, and orientation. You can set custom margins or choose from preset options. These changes explore to the entire document unless you have divided it into sections with different settings.

What happens if two people edit the same document at the same time?

In cloud editors like Google Docs, both people can edit simultaneously and see each other's changes in real time. In desktop editors like Word, only one person can have the file open at a time. If someone else opens it while you are editing, you will get a warning that the file is locked.

Can I change a document after I have printed it?

Yes. Printing does not change the file itself — it just creates a paper copy. You can edit the document on your computer after printing, and the changes will not affect the printed pages. If you need an updated printed copy, you will need to print again after making your changes.