May 13, 2026 · Sign PDF
How to Add a Stamp, Logo, or Signature to a PDF
A PDF sign-off is often more than one scribble at the bottom of a page. You may need a typed name, initials, a drawn signature, a company stamp, a logo, or several of those on different pages. The Sign PDF tool lets you create and place those visible signing elements directly in your browser, then download the finished PDF without uploading the document.
What you can add to a PDF before sending it
A signature is the obvious part, but real documents often need a few different marks. A sales quote may need a logo. A delivery form may need initials. An internal approval may need a stamp. A contract may need a typed full name plus a drawn signature below it. Instead of using separate tools for each item, AI PixFix keeps the signing elements in one workflow.
- Type a full name or initials and choose from 11 signature-style fonts.
- Draw a signature with a mouse, trackpad or finger.
- Upload an existing signature image.
- Upload a company stamp or logo and place it on the PDF.
- Move, resize and rotate each item after it is placed.
How to add a stamp, logo or signature to a PDF
Upload the PDF
Open the tool and choose the PDF you need to sign. The document preview is created in the browser.
Create your signing items
Type your name, add initials, draw a signature, upload a signature image, or add a stamp or logo.
Place items on the pages
Drag each item onto the correct page. Use the handles to resize or rotate it before export.
Download the signed PDF
When everything is in the right place, export the PDF and save it back to your device.
Typed, drawn and uploaded signatures
The fastest way to sign is to type your name and choose a signature font. AI PixFix includes multiple script styles, so a typed name can look formal, casual or compact depending on the document. You can also choose a color: black for most forms, blue when you want the signature to stand out from printed text, red or green for internal review marks.
If you prefer a handwritten mark, use the drawing pad. It works with mouse, trackpad or touch input, which makes it practical on a laptop or tablet. If your organization already keeps an approved signature image, upload it instead. The same placement tools work for all three options, so you can add a signature to a PDF without changing the rest of the workflow.
The tool also supports initials. That matters when a document asks for short approval marks on several pages and a full signature only at the end. You can create initials once, place them where needed, and keep the final signature separate.
Add a company stamp or logo to the same PDF
Some documents need more than a personal signature. A stamp can show approval, paid status, received status or company identity. A logo can make a quote, invoice, form or PDF packet look official before it leaves your inbox. In AI PixFix, stamp and logo files are handled as signing assets, so they can be positioned with the same controls as a signature.
After upload, place the stamp or logo on the page, resize it to match the document and rotate it if the page layout requires an angled mark. The PDF signature tool keeps each item independent, which helps when one page needs a logo in the header and another page needs a signature near the footer.
Why browser-only signing is better for private PDFs
PDFs that need signing are often sensitive: contracts, NDAs, quotes, invoices, approvals, HR forms or identity paperwork. Uploading that file to a random service creates an extra copy and an extra place to trust. Established options such as Adobe Acrobat and Smallpdf can be useful for broader PDF workflows, but this guide focuses on the no-upload path inside AI PixFix. The PDF opens in the browser, signing items are placed locally, and the finished file is generated on your device.
This does not make the page a legal adviser, and it does not turn a visible signature image into a certificate-based digital signature. But for everyday electronic sign-offs, the legal framework is broader than many people expect. In the United States, the ESIGN Act says a signature generally cannot be denied effect solely because it is electronic. In the European Union, eIDAS defines electronic signatures and gives qualified electronic signatures equivalent legal effect to handwritten signatures.
Practical layout tips before you download
A signed PDF should look intentional. Before downloading, zoom out and check every page that contains a signing item. Keep signatures inside form lines or signature boxes. Keep stamps away from legal text. Do not place a logo over page numbers, footnotes or important dates. If the PDF has several pages, make sure initials and stamps appear on the correct page, not just the page currently visible in the preview.
Use rotation only when the document design calls for it. A slightly angled stamp can look natural on an approval sheet, but a signature usually reads better when it follows the baseline of the form. Once everything is aligned, the AI PixFix Sign PDF tool exports the signed file for download.
Frequently asked questions
Can I add a signature, stamp and logo to the same PDF?
Yes. AI PixFix lets you create several signing items, including typed names, initials, drawn signatures, uploaded signature images, company stamps and logos. You can place them on the PDF pages you choose.
Does the PDF get uploaded while signing?
No. The tool works in your browser. Your PDF is opened, previewed, edited and exported locally on your device, so the document is not uploaded to AI PixFix servers.
Can I draw my signature with a mouse or finger?
Yes. The signature tab includes a drawing pad for mouse, trackpad or touch input. You can also upload an existing signature image if you already have one.
Can I move and resize the signature after placing it?
Yes. After you place an item on the PDF, you can drag it, resize it and rotate it before downloading the signed file.
Is this the same as a certified digital signature?
No. This tool adds visible electronic signing elements to a PDF. It is useful for everyday sign-offs, approvals and forms, but it does not create a cryptographic certificate-based digital signature.
Add the signature, place the stamp, drop in the logo and download the PDF. Everything stays in your browser.
Add signature to PDF