Background Remover

Document conversion online is the process of transforming a file from one format to another directly in your browser — no software to install, no account required. Transfonic supports 13 document formats, including PDF, DOCX, XLSX, PPTX, CSV, HTML, EPUB, ODT, ODS, RTF, TSV, TXT, and Markdown, converting between them in seconds for free.

You are reviewing a contract and need to circle a clause. You are marking up a student assignment and want to sketch a correction in the margin. You have a blueprint or technical diagram that needs annotations drawn directly on the page. In every case, the question is the same: how do you draw on a PDF without printing it, without buying Adobe Acrobat, and without spending ten minutes figuring out a complicated tool?

To add a signature to a PDF free online, upload your document to Transfonic's PDF Add Signature tool, create your signature by drawing, typing, or uploading an image, place it on the correct page, and download the signed file. No signup, no watermark, no software required — done in under a minute.

PDF files are built to look identical on every device. Word documents are built to be edited. When you force one into the other without the right tool, things break — headers collapse into body text, tables fall apart, images jump to random positions, and fonts get substituted. If this has happened to you, the problem isn't you. It's the method.