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How Do I Fill Out a PDF? Step-by-Step on Any Device

By Timo van Deventer, Senior AI Product Specialist Updated 11 October 2026 Sources checked on 6 minute read

Short answer

Open the PDF in a PDF viewer such as Adobe Acrobat Reader or Google Drive. Click a field, type your answer, then save. If nothing is clickable, the form is flat: use a Fill & Sign or Add Text tool to type anywhere on the page. Save a copy when you’re done.

Join the Kwalify waitlist to get documents signed on WhatsApp

What is the easiest way to fill out a PDF?

Open the PDF in a free viewer and click the first field. If the cursor appears and you can type, the form is fillable. Press Tab to move to the next field and Shift+Tab to go back.

If nothing responds, the form is probably flat. Flat forms need a different method, covered below.

These options work for most forms:

How do I fill out a PDF that was emailed to me?

Download the attachment first, then open it in a PDF viewer instead of the email preview. Previews often won’t accept typing.

Once it is open, fill in the fields. Use Save as and give the file a new name, such as “Application-Thandi-Nkosi.pdf”. This keeps the blank original untouched. Reply to the email with the new file.

Check the filled file before you send it. Look at your names, dates and ID number.

According to Stats SA’s 2023 General Household Survey, as reported by Engineering News, 96.1% of South African households owned at least one mobile phone. If you read your email on a phone, use the steps in the next section.

How do I fill in a PDF on my phone?

Open it in the Google Drive app and use Form Filling. On Android, the steps are:

  1. Open Google Drive and tap the PDF.
  2. Tap Edit, then Form Filling.
  3. Enter your information.
  4. Tap Save.

Google’s help page for filling out PDF forms in Drive on Android adds that if you don’t see the option, you may not be able to fill out the PDF. In that case, try another app or the Fill & Sign method below.

How do I fill out a PDF that is not fillable?

Use a Fill & Sign or Add Text tool to type anywhere on the page. Adobe explains that on a flat form, the Fill & Sign tools let you add text and other symbols anywhere on the form.

  1. Open the PDF in Acrobat Reader and choose Fill & Sign.
  2. Click where the answer should go and type it in.
  3. For a checkbox, place a tick or cross in the box.
  4. Add the date in the same way.
  5. Save a copy under a new name.

What about the signature?

You can make a signature image with the free signature generator and place it on an ordinary document.

The ECTA does not make these valid (section 4(4), Schedule 2):

  • an agreement for the alienation of immovable property (such as a sale of land)
  • an agreement for a lease of immovable property for more than 20 years
  • executing, keeping and presenting a will or codicil
  • executing a bill of exchange

Check with an attorney before signing one of these electronically.

How Kwalify helps

How Kwalify helps: Kwalify asks your clients for details and documents on WhatsApp and checks the documents against your rules. Anything that fails a rule goes to a person to decide. Kwalify sends reminders until everything is in. Signing uses a one-time code and a standard electronic signature, with an audit trail and a sealed PDF. For a signature image on your own ordinary documents, try the free signature generator. Join the waitlist

Which tool should I use? A quick checklist

Your situationWhat to doTool
Fillable PDF on a computerClick the fields and typeAcrobat Reader
Flat or scanned PDF on a computerUse Fill & Sign or Add TextAcrobat Reader
PDF on an Android phoneOpen in Drive, tap Edit, then Form Filling, then SaveGoogle Drive
PDF received by emailDownload it, open it in a viewer, save a copy, reply with the copyAny PDF viewer
Form needs a signaturePlace a signature image for ordinary documents. The ECTA does not make Schedule 2 transactions valid (section 4(4), Schedule 2): check with an attorney before signing one electronicallySignature generator

Before you send the form, tick off each item:

  • Check your names and ID number.
  • Check the dates.
  • Tick every required box.
  • Save a copy.
  • Keep the blank original.

FAQ

How can I fill out a PDF form for free?

Open the file in a PDF viewer, click a field and type. Save a copy when you’re done.

Why can’t I type in my PDF form?

The form is probably flat, which means it has no interactive fields. Use a Fill & Sign or Add Text tool to place text anywhere on the page. If it opened in an email preview, download it and open it in a PDF viewer.

Is a typed or drawn signature on a PDF legal in South Africa?

An electronic signature is not without legal force just because it is electronic (ECTA section 13(2)). Where the parties require a signature but haven’t agreed on the type, the method must identify the person and show their approval, and be as reliable as was appropriate for the purpose (section 13(3)).

How do I save a filled PDF so I keep the blank form?

Use Save as and give the filled copy a new name, for example with your name at the end. The blank original stays untouched. Send the filled copy.

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