Sign a PDF in hYYa ink
- 1
Choose Sign
Open the PDF in hYYa ink and choose Sign.
- 2
Draw your signature
Draw it with your finger, or with a mouse or trackpad on a Mac, in black or blue ink, then choose Add signature.
- 3
Place it
Drag it into position, resize or rotate it until it sits right, then choose Done.
- 4
Save a new PDF
Choose Save copy. Saving writes a new PDF, and the one you opened stays as it was.
Signing never uploads your PDF. AI actions are separate: running one sends the open PDF's text to the service you chose.
Finish the whole document
Write on the page
Fill & Sign lets you type straight onto a PDF where you tap. hYYa ink identifies no fields, so the text goes exactly where you put it.
Ticks, crosses and the date
Tick or cross a box, or add today’s date, with one tap each. Done offers to save a filled copy.
Sign once, reuse it
Sign can keep up to three signatures and one set of initials for next time. They stay on your device and are left out of backups.
Stamps
Add Approved, Paid, Draft, Confidential, Received, today’s date or a word of your own.
When you need something else
An image, not a certified signature
The signature is a visual image on the page, not a cryptographic or certified signature. If a contract, bank or government office asks for one of those, this is not it. Use the signing service they name.
Check it will be accepted
Whether a drawn signature is accepted depends on who asked for it. If it matters, ask them first.
It proves nothing by itself
A signature image does not show who placed it, and it does not reveal later changes to the file.
No field detection
hYYa ink identifies no fields. You choose where everything goes.
Your original stays unsigned
Saving writes a new PDF, so make sure you send the signed copy.
Part of Pro
Signing needs hYYa ink Pro or the 7-day free trial. Pro is a one-time purchase, and pricing is on the store. Reading PDFs is free.
Questions, answered
Does signing upload my PDF?
No. Signing never uploads your PDF. AI actions are separate: running one sends the open PDF's text to the service you chose.
Is this a certified signature?
No. The signature is a visual image on the page, not a cryptographic or certified signature. Whether it is accepted depends on who asked for it, so check with them if you are not sure.
Does hYYa ink find the boxes on a form?
No. hYYa ink identifies no fields. You tap where you want the text, a tick, a cross or the date, and it goes exactly there.
Can I reuse my signature?
Yes. Sign can keep up to three signatures and one set of initials for next time. They stay on your device and are left out of backups.
Does it change my original PDF?
No. Saving writes a new PDF. The one you opened stays as it was, so keep the signed copy and send that one.