Add Text to PDF on iPhone and Mac — Free, No App Download

If you're in the Apple world, you have at least two free ways to add text to PDFs without downloading anything. Preview on Mac is already installed. Safari on iPhone opens browser-based tools without any app. Here's how to use each one, when to pick which, and what the limitations are.

On Mac: Two Methods

Method 1: Preview (Built-In, Free-Form Placement)

Preview is not just a PDF viewer. It can add text, shapes, signatures, and notes to PDFs.

1. Double-click the PDF to open it in Preview. (If it opens in a different app, right-click > Open With > Preview.)
2. Click the Markup toolbar icon (looks like a pen tip in a circle) at the top of the window. Or go to View > Show Markup Toolbar.
3. Click the T button (Text) in the toolbar.
4. A text box appears on the page. Drag it wherever you want.
5. Type your text. Double-click the box to edit.
6. Use the Aa button in the toolbar to change font, size, color, and alignment.
7. Press Cmd+S to save. Preview saves the changes directly into the PDF.

Preview pros: Free-form placement (drag the text box anywhere), full font selection (every font installed on your Mac), and it's already on your computer.

Preview cons: Can only work one page at a time. There's no "add text to all pages" feature. If you need a header on 50 pages, you'd need to add it manually to each one. The text box has a visible border that requires extra clicks to hide (set border to "none" in the formatting options).

Method 2: Browser-Based Tool in Safari (All-Pages Feature)

1. Open the PDF Text Adder in Safari.
2. Drop your PDF into the tool.
3. Type your text. Choose position, font, size, and color.
4. Select a specific page or All Pages.
5. Click Add Text. Download.

Browser tool pros: Can add text to all pages at once (headers, footers, stamps). No text box border issues. Faster for "same text on every page" tasks.

Browser tool cons: Uses preset positions (7 options) instead of free-form drag-anywhere. Three font choices instead of every font on your Mac.

When to Use Which on Mac

Task	Best Method	Why
Add text to a specific spot on one page	Preview	Drag the text box to the exact pixel
Add a header/footer to every page	Browser tool	All Pages feature does it in one click
Stamp CONFIDENTIAL on all pages	Browser tool	36pt center stamp on all pages
Add a note with a specific font	Preview	Full font library available
Fill in a non-fillable form	Preview	Position text exactly in the blank fields
Quick label on page 1	Either works	Browser tool is faster, Preview is more precise

On iPhone: Two Methods

Method 1: Files App Markup (Built-In)

1. Open the Files app on your iPhone.
2. Tap the PDF to open it.
3. Tap the markup icon (pen tip icon in the top right, or swipe up from the toolbar).
4. Tap the + button.
5. Select Text.
6. A text box appears. Drag it where you want it. Double-tap to type.
7. Tap Done when finished. The PDF saves with your text added.

This works directly in the Files app with no download. If the PDF is in your email, save it to Files first, then open and markup.

Method 2: Browser Tool in Safari

Open the PDF Text Adder in Safari on your iPhone. Upload the PDF, type text, choose settings, download. Same as on a computer. The interface adapts to your phone screen.

The browser tool is better when you need to add text to all pages at once. The Files app markup only works one page at a time.

On iPad

iPad works exactly like iPhone for both methods. The larger screen makes Preview-style text placement easier. If you use Apple Pencil, the markup mode lets you draw and handwrite on PDFs. But for typed text, you still use the Text tool (tap +, select Text) and the on-screen keyboard or a connected keyboard.

Common Apple-Specific Questions

"Preview changed my font and it looks different"

Preview defaults to Helvetica. If you change to a different font, make sure the font is widely available. Obscure fonts may render differently on the recipient's device if they don't have that font installed. Stick with Helvetica, Times New Roman, or Courier for maximum compatibility.

"I saved in Preview and now I can't undo"

Cmd+S in Preview saves changes directly to the file. If you want to keep the original, use File > Export as PDF to save a copy with your changes, keeping the original intact. Or duplicate the file before editing (right-click > Duplicate in Finder).

"The Files app markup doesn't show a text option"

Some PDFs have editing restrictions that prevent markup. Try the browser-based tool instead. It handles most protected PDFs. If even that fails, the PDF has strong encryption. Use a PDF unlocker first.

After Adding Text

Common next steps:

• Sign the PDF: PDF Signer adds your drawn signature
• Compress for email: PDF Compressor shrinks file size
• Merge with other PDFs: PDF Merger combines documents
• Add page numbers: Page Numbering tool for sequential numbering

All of these work in Safari on both Mac and iPhone. No apps for any of it.