Sign PDF

Draw with a mouse, pen or touch, type a name using a cursive font, or upload a signature image. Typed and drawn signatures are flattened image overlays. Font appearance follows fonts available on your device.

This tool creates a visual signature, not a certificate-based digital signature. It does not verify identity, provide a signing audit trail, request other people’s signatures or certify legal validity. PDF files containing signature fields are rejected to avoid silently invalidating signatures.

Use thumbnails to select a page, drag or use keyboard arrows to move additions, and use resize and rotation handles. The contextual toolbar applies formatting changes automatically. The bottom viewbar provides page navigation, zoom and fit controls. Text and date additions use the same editor controls. Undo and Redo retain the last 30 addition edits.

The source PDF and signature contents remain on your device. No signature image, signed copy or signing identity is retained by Helphonic. Exported additions cannot be edited as individual objects in this tool after reimport; keep an original unsigned copy.

One PDF up to 20 MB, at most 50 source pages, 200 added elements, 20,000 drawing points and 200 existing form fields. Inserted images are limited to 20 files, 8 MB each, 20 MB combined, 16 million pixels per image and 32 million pixels combined. Rendered overlays are limited to four million pixels per page; the document and artwork output budget is 60 MB.

Password-protected, XFA and digitally signed PDFs are not supported. Existing page rotations and crop boxes are respected for artwork. Extremely large or malformed pages are rejected. Work is held only in page memory, not autosaved. Previewing and editing do not use an operation; a confirmed export does.

Files and entered content are processed on your device in this browser tab. File contents and results are not uploaded to Helphonic or sent to analytics. The page still contacts Helphonic to load its tools, check access and confirm non-content usage information. Work is not saved to your account; download or copy results before leaving or reloading the page.

Use a current browser and smaller inputs if the tab runs out of memory. Some tools download a local processing library or model on first use, so an internet connection is needed even though your content stays on the device.

If the tool reports that access or limits changed, review the current policy and run it again. If usage confirmation is uncertain after an interrupted connection, a retry can count as another operation. Download completed work before reloading; this site does not keep a recovery copy.