Want to change font size in PDF text boxes from a fillable form? Not that hard, my friend.

Fillable PDF forms made it very simple to fill out a PDF form, submit and collect data without writing down or printing out paper forms. But sometimes the fillable PDF font size is too big or too small, and we need to change it in form fields, with the size decreased or increased to fit our needs.

Changing fonts size in fillable forms can be easy, but the easiness depends on which tool we will use for the task. If you want to stick to something easy but efficient, you can change font size in Adobe Acrobat, if you are not that ambitious and want to try something free, we also have the options right here.

How to Change Font Size in PDF Fillable Form with Ease?

With the creation of PDF format by Adobe, it became possible for anyone dreaming of making digital copies flexible, shareable, professional-looking. And it’s Acrobat is the best way to change font size in or outside of a PDF fillable form field.

Adobe Acrobat has lots of features and gives users plentiful good ideas of how render a document. These include: Edit (text, image, url, media object, buttons, fields), Create (from Word, images, etc.), Export (to Word, spreadsheet, PowerPoint, text, image, etc.), Scan & OCR (turn scans, image PDF to searchable PDF, to Word, etc), Fill & Sign (fill out forms, sign, prepare form, add buttons), Markup (highlight, comment, annotate, draw), Compare, Share, Review and others.

With the Prepare Form feature, users can not only change font size, but also can change font style, text color, and everything about the form fields including appearance, position, alignment, actions, format …

If you are already familiar with the features of Adobe Acrobat, you may find it easier to change font size in it. If this is your first encounter with it, you can explore and experiment with its 7-day free trial first, which will help you to get to know it better.

Here is how to change font size in PDF fillable form with Adobe Acrobat:

  1. Get the free 7-day copy of Adobe Acrobat, install and fire up the app on your Mac or Windows machine.
  2. Head to Tools>Forms & Signatures>Prepare Form.change font size form adobe 1
  3. Select the file and click Start.change font size form adobe 2
  4. Select all the text fields that you want to change font size (drag and move your mouse to cover all the fields on the page, then release, all the form fields will be selected), right click one of the selected fields, choose Properties.change font size form adobe 3
  5. Head to Appearance>Text, choose your font size, click Close.change font size form adobe 4
  6. In the secondary toolbar, choose to Preview and check if the font size is OK, if OK, click Close, if not OK, click Edit to modify.change font size form adobe 5
  7. Hit Save button.

Change Font Size in PDF Fillable Form Free

There is no straightforward way to change font size in fillable PDF for free, but if you insist, you can try with Sejda editor, and there is a caveat: you gotta say goodbye to efficiency when changing font size in your PDF using this method.

Sejda is online PDF editor that works in a web browser, it let users add or edit texts, links and images, also helps users insert fillable text boxes. You can easily change font size for the texts that outside of a fillable filed, but if you want to change the font size in fillable PDF form fields, you have to add a new text box with its own form tools, then edit the font size in its property panel. In addition, this tool allow 3 free PDF editing per day, up to 50MB and 200 pages.

How to change font size in PDF fillable form free?

  1. Navigate to Sejda.com/pdf-editor, upload the fillable PDF form.
  2. Hover to Forms>Text box.change font size fillable pdf free 1
  3. Add a fillable text box onto the fillable form fields that you want to change font size.change font size fillable pdf free 2
  4. Click Font size and select a number.change font size fillable pdf free 3
  5. Enter texts into the fillable field to check if the font size is OK, then hit Apply changes.change font size fillable pdf free 4
  6. Save the fillable PDF to your local drive.

How to Change Font Size in PDF Fillable Form on Mac Preview

In macOS, increasing or decreasing font size in fillable PDF form is simple enough. On your Mac, Preview is preinstalled, the app will help you to open, markup, export, annotate, bookmark, rotate, crop and print PDFs. For a fillable PDF form, Preview let users easily fill out and change font size of entered texts in text box.

However, it can only change font size in the viewing when the texts are too small, it cannot permanently save the font size changes in your fillable PDF, unless you manually enter all the texts into the fields with its text tool.

Change font size in PDF fillable form on Mac Preview by entering texts manually

  1. Open the fillable PDF in Preview, click on T icon from the markup toolbar and add a text box on to the place where you want to fill in.change font size fillable pdf preview 1
  2. Hover to Aa, select a font size for the entered texts.change font size fillable pdf preview 2
  3. Check the result, hover to File>Save.change font size fillable pdf preview 3

Change font size in PDF fillable form on Mac Preview for viewing only

  1. Open the PDF in Preview.change font size form preview 1
  2. Input the text to the form fields, select the text and right click to choose Show Fonts.change font size form preview 2
  3. Now you can move the size slider bar up or down to decrease and increase font size in the form.change font size form preview 3

Online: How to Change Font Size when Filling out PDF

You might be tempted to change font size in PDF fillable form in your Chrome browser, because you don’t have to download a package and install on your machine. We can find free tools in our browser to do some basic editing, like editing texts, images or urls, but advanced editing like change font properties is not allowed free, we need to pay for the online service. Also, you can not change font size of all entered texts at one time, you have to change one by one.

If you still insist on changing font size in PDF fillable form online, we will offer an extra help of doing this with SodaPDF as follows:

  1. Navigate to online.sodapdf.com in your web browser.
  2. Upload the PDF file.change font size form chrome 1
  3. Head to Edit, select the field that you want to change font size, right click to choose Properties.change font size form chrome 2
  4. Head to Appearance>Font>Size, enter the font size and click Apply.change font size form chrome 3
  5. Then click Download button, pay and save the form.

Why Users Like Adobe Acrobat?

At the beginning, you might refuse to take an adventure with Adobe Acrobat, but at any point in the process of changing font size or editing PDFs with other tools, you will find they are not perfectly designed for all tasks, especially when you want more control over PDF customization, Adobe Acrobat is the only one solving all problems. There is also rich contents, materials and tutorials from Adobe to guide you into the new world of PDFs.