Open your PDF
Choose it from Mail or Files.

eSign PDF / Guide
You want to type your answers into the form. Many people call this editing the PDF. You can do it on your iPhone.
Short answer
You can fill in a PDF form on your iPhone and send it back. No printer needed. Many people call this "editing" the PDF. You tap where you want to type, add the date, tick boxes, and sign. The iPhone's built-in tool works for simple forms. eSign PDF makes it easier, with no account, for $59.99 one-time (US).
OPEN · SIGN · SEND
See how it works on your iPhone.
Choose it from Mail or Files.
Add your signature and fill in the details.
Share a finished PDF they can open.
Tap the PDF in your email or in Files. Tap the Share button (the square with the arrow) and choose eSign PDF.
Tap a blank space and type your name, address, or other answers. Add the date and tick the boxes. Then draw your signature on the signature line.
Tap Share and choose Mail. Send it to the person or office that asked for it.
Some computers do not show text or a signature added with the iPhone's built-in tool. The office opens your form and it looks empty.
eSign PDF locks your answers and signature into the page (this is called flattening). Then they show up on any computer.
The free way
Some forms let you tap a blank and type right away. For those, the iPhone's built-in Markup tool can be enough for a simple one-page form. Open the PDF, tap the pen icon, and use the text and signature tools. Our longer guide explains how to fill PDF forms on iPhone.
The easier way
eSign PDF lets you type, add dates, tick boxes, and sign anywhere on a PDF form, then send it back. $59.99 one-time (US). No account. Nothing is uploaded.
If you mean filling in blanks and signing, open the PDF, tap where you want to type, and add your answers. You are adding to the form, not changing the words already on it.
Some forms are just a picture of a page, so there is nothing to tap. In eSign PDF you can type anywhere on the page.
Yes. Save the form to the Files app and open it again when you are ready.
Sign, fill and flatten PDFs on iPhone. No account. $59.99 one-time (US).
Get eSign PDFGuide
How to fill out and sign a PDF form on iPhone
Text, dates, checkboxes, initials, signature. Fillable vs flat forms, and when Apple's tools are enough.
Guide
My bank sent me a PDF to fill in. How do I do it on my phone?
A bank PDF with small boxes and a signature line. Check for the bank's own online form first, then fill it on your iPhone.
Guide
How do I put my signature on a document on my phone?
Draw your signature with your finger, or use a photo of your pen signature. No scanner needed.

