To fill out a PDF form, open it in a browser-based editor. If the form has interactive fields, you type directly into the detected text boxes, checkboxes, and dropdowns. If it is a flat form with no fillable fields, you add text on top of each blank line and place checkmarks where needed. Then sign it and download. It runs on your device, so the form is never uploaded, with no sign-up and no watermark, and you can flatten the fields so they cannot be changed later.
PDF forms come in two kinds: interactive ones with clickable fields, and flat ones that are really just a printed layout with blank lines. Both can be filled in a browser without printing, scanning, or uploading. Here is how to handle either — and how to sign the result.
An interactive form has real form fields — click one and a cursor appears. A flat form has no fields; the blanks are just lines drawn on the page, so you cannot click into them. A good browser editor handles both: it detects and fills real fields, and for a flat form it lets you drop text and checkmarks anywhere on the page.
Do it now:
Many forms need a signature. You can draw or type one directly onto the page in the same browser session, then flatten the document so the fields and signature become part of the file and cannot be changed. Because everything runs on your device, a sensitive form — a tax document, an application, an intake sheet — is never uploaded.