You can add text boxes to a PDF using Adobe Acrobat, free online tools, or built-in features in Preview on Mac

Adding text to a PDF is straightforward once you know which tool to use. The method depends on what you have available: Adobe Acrobat Reader (the free version) has limited text-adding features, but Adobe Acrobat Pro (paid) gives you full control. If you don't want to pay, Preview on Mac does this built-in, and several free online tools let you upload a PDF and add text boxes without installing anything.

The steps differ slightly depending on your device and software, so this guide covers the most common routes. Each method takes about the same amount of time — usually under five minutes once you know where to click.

Key Takeaways

  • Adobe Acrobat Pro is the most powerful option but costs money; the free Adobe Acrobat Reader cannot add text boxes at all.
  • Mac users can add text boxes directly in Preview without any extra software or cost.
  • Free online PDF editors like Smallpdf, ILovePDF, and PDFtk let you upload a PDF and add text boxes without downloading anything.
  • Text boxes you add stay in the PDF permanently once you save the file, so you can send it to others with your text already there.
  • If you plan to edit PDFs regularly, Adobe Acrobat Pro or a dedicated free tool saves time compared to using online editors each time.

Adding text boxes in Adobe Acrobat Pro on Windows or Mac

Adobe Acrobat Pro is the standard tool for PDF editing and gives you the most options. Open your PDF in Acrobat Pro, then look for the "Tools" menu at the top. Click "Tools," then find "Add Text" or "Text Box" in the menu that appears. Click that option, and your cursor will change — now you can click and drag anywhere on the PDF to create a text box.

Once you've drawn the box, start typing. You can change the font size, color, and alignment by right-clicking the text box and selecting "Properties." When you're done, go to File > Save to keep your changes. The text stays in the PDF permanently, and anyone who opens the file will see your text boxes.

The downside is that Adobe Acrobat Pro costs money — it's a subscription service, not free. Adobe Acrobat Reader (the free version) does not have a text-adding feature, so if you only have the free reader, you'll need to use one of the other methods below.

Using Preview to add text boxes on Mac

If you use a Mac, Preview is built into your system and can add text boxes without any extra cost. Open your PDF in Preview (right-click the file, select "Open With," and choose Preview). At the top of the window, click the "Markup" button — it looks like a pen tip in a circle. A toolbar will appear below it.

Look for the text icon in that toolbar (it usually looks like the letter "A"). Click it, then click and drag on the PDF to create a text box. Type your text, and you can adjust the font and size using the options that appear. When you're finished, press Command+S to save the changes directly to your PDF file.

Preview is fast and simple for basic text boxes, but it has fewer formatting options than Acrobat Pro. If you only need to add a few lines of text or fill in simple fields, Preview is the easiest route on Mac.

Adding text boxes with free online PDF editors

If you don't want to install software or pay for a subscription, free online PDF editors work in any web browser on Windows, Mac, or Linux. Three reliable options are Smallpdf, ILovePDF, and PDFtk. Go to the website, click "Upload PDF" or a similar button, and select your file from your computer. The PDF will open in the editor.

Look for a "Text" or "Add Text" button in the toolbar. Click it, then click on the PDF where you want the text box to appear. Type your text, adjust the font size if needed, and position the box where you want it. When you're done, download the edited PDF back to your computer. The file will have your text boxes permanently added.

The main limitation of free online tools is that they usually have fewer formatting options than Acrobat Pro, and you have to upload your file each time. If your PDF contains sensitive information, check the website's privacy policy before uploading — most reputable tools delete files after a few hours, but it's worth confirming.

Positioning and formatting text boxes

Once you've created a text box, you can move it by clicking and dragging it to a new location. In Acrobat Pro and most online editors, you can also resize the box by dragging the corners or edges. If the text doesn't fit, you can either make the box bigger or reduce the font size.

To change how the text looks, right-click the text box (or look for a formatting menu in online tools) and adjust the font, size, color, and alignment. In Acrobat Pro, you can also make text bold or italic. Most online tools have simpler options — usually just font size and color — but that's enough for most tasks like filling in forms or adding notes.

If you make a mistake, you can delete a text box by clicking it and pressing Delete or Backspace. Always save your changes when you're done, or the text boxes will disappear when you close the file.

Saving your PDF with text boxes

After you add text boxes, you must save the file for the changes to stick. In Acrobat Pro and Preview, use File > Save or press Ctrl+S (Windows) or Command+S (Mac). The text boxes will be permanently embedded in the PDF. In online editors, click the "Download" button and save the file to your computer.

Be careful not to overwrite your original PDF if you want to keep a copy without the text boxes. You can save the edited version with a new name — for example, "form_filled_in.pdf" instead of "form.pdf" — so you have both versions. Once the text is saved into the PDF, anyone who opens the file will see your text boxes, and they can print the PDF with the text included.

When text boxes don't work the way you expect

Sometimes text boxes behave oddly. If your text appears in the wrong place or the box is too small, try deleting it and creating a new one. If the font looks blurry or wrong, check that you're using a standard font like Arial or Times New Roman — some PDFs have trouble with unusual fonts.

If you're using an online tool and the text doesn't save, make sure you clicked "Download" before closing the browser. Online editors don't save your work automatically — if you close the tab without downloading, your changes are lost. In Acrobat Pro and Preview, always use File > Save to confirm the changes are written to the file.

If you're trying to fill in a form PDF and the text boxes keep jumping around, the PDF might be a scanned image rather than a real PDF. Scanned PDFs are pictures of documents, not editable text, so text boxes won't align properly. In that case, you may need to print the PDF, fill it in by hand, and scan it back, or use optical character recognition (OCR) software to convert the image to editable text first.

Frequently Asked Questions

Can I add text boxes to a PDF on my phone or tablet?

Yes, but it depends on your device. On iPad, the built-in Books app and many PDF readers let you add text and annotations. On Android, apps like Adobe Acrobat Reader and Xodo have text-adding features. On iPhone, your options are more limited, but Adobe Acrobat Reader for iOS does support text boxes. Most phone apps are simpler than desktop versions, so expect fewer formatting options.

What's the difference between adding a text box and using the "fill and sign" feature?

Text boxes let you add text anywhere on the PDF and format it however you want. The "fill and sign" feature in Adobe Acrobat is designed specifically for signing documents and filling in form fields — it's faster for forms but less flexible for general text. If you're just adding notes or comments, text boxes are the right choice.

Will the text boxes I add show up if someone opens the PDF in a different program?

Yes, as long as you save the PDF properly. Text boxes added in Acrobat Pro, Preview, or online editors are embedded into the PDF file itself, so they appear in any PDF reader. The only exception is if you save as a different format (like Word or image) — then the text might not transfer correctly.

Can I edit text boxes after I save the PDF?

Yes. Open the PDF again in the same program you used to create it (or any program that supports text editing), click the text box, and make your changes. Save the file again when you're done. The only limitation is that some online editors don't let you re-upload and edit the same file — you have to download it first, then upload it again if you want to make more changes.

Is there a way to add text boxes without paying for Adobe Acrobat Pro?

Yes. Use Preview on Mac, free online editors like Smallpdf or ILovePDF, or free desktop software like LibreOffice Draw (which can open and edit PDFs). Each has fewer features than Acrobat Pro, but all can add basic text boxes. If you edit PDFs frequently, the cost of Acrobat Pro might be worth it, but for occasional use, free tools work fine.