When you receive a PDF that needs your signature in Gmail, here is the fastest free workflow to sign and return it.
Open the email in Gmail. Click the PDF attachment to preview it. Click the download icon (arrow pointing down) to save it to your Downloads folder.
Open pdfeditor.onl/sign-pdf in a new browser tab. Upload the saved PDF. Draw or type your signature. Place it on the signature field. Download the signed PDF.
Tip: Keep the Gmail tab open. After signing and downloading, switch back to Gmail to compose a reply.
In Gmail, click Reply on the original email. Click the attachment icon. Select the signed PDF from your Downloads folder. Send.
Gmail's built-in tools cannot sign PDFs. You need to download, sign externally, then re-attach. The workflow above is the fastest free method.
Yes — completely free at pdfeditor.onl/sign-pdf.