Add Signature Field
Add a labeled signature-line area to an existing PDF — a bordered text field where the recipient drops an image-based signature later.
1. Upload your file
How does the Add Signature Field work?
Add labeled signature-line fields to an existing PDF — bordered boxes with a horizontal signature rule and a label underneath. Each box is a real AcroForm text field (so it can be filled with typed text), but it is styled to indicate where image-based signatures (drawn or pasted via Sign PDF / Quick Sign Mobile) should be placed. Honest about scope: this is for IMAGE-based signatures, not PKI / cryptographic digital signatures — those need Adobe Acrobat or a regulated workflow like DocuSign.
🔒 Security & Privacy
All processing happens on your device. Your files never leave your browser, never touch our servers, and are not stored anywhere. Close the tab and the file is gone.
📱 Use it on any device
Works in any modern browser — Mac, Windows, Linux, iPhone, Android, and tablets. No installation, no app to download. Just open the page and start.
⚡ Quick & easy
Drag, drop, click. Most files process in seconds, not minutes. No watermarks added to your output, no per-day limits, and the tool always shows the result before asking you to download.
🎁 Always free, no signup
Free to use, every time. No account creation, no email required, no “trial” that converts to a paid plan. We make money from ads so you don’t have to pay.
Frequently asked
Related PDF tools
More tools you might like
Hand-picked tools that pair well with this one — same audience, same intent.
Add one or more AcroForm text fields to an existing PDF — for adding fillable inputs to a flat document.
Add a signature to a PDF — type your name in a script font, upload a transparent PNG/JPG, or pick from your library. Or use Verify mode to check whether a digitally-signed PDF has been modified since signing.
Convert a filled-in PDF form into static, un-editable text — fields become part of the page so the values can't be changed.
Sign a PDF using a phone photo of your handwritten signature on a piece of white paper — no need to manually create a transparent PNG first.
Add date AcroForm fields to a PDF — text fields styled with date format hints and tooltips guiding the user toward MM/DD/YYYY entry.
Add a header text line and/or a footer text line + page number to every page — clean running heads and page numbers in one pass.
Insert a PNG or JPG image into an existing PDF at any page and position — for stamps, signatures, logos, or photos.
Parent/guardian permission slip authorising a child to attend a school field trip.