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Fill in fields, add checkmarks and sign
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How to fill and sign a PDF
Fill in a PDF form and sign it without printing. Type into the form's own fields, or place text, dates, marks and a signature anywhere on a page.
Add your PDF
Drag the PDF onto the upload box, click to choose it, or import it from Google Drive. A password-protected file asks for its password first. If the PDF has fillable fields, they are highlighted and you can type into them directly.
Add text, dates and marks
Choose Add text, Date or Checkmark in the bar above the pages, then click the page where the item should go. The menu next to Date sets the date format. The Checkmark menu also has X mark and Bullet. Drag an item to move it, and drag the round handle to resize it.
Sign the document
Click Add signature or Initials. Draw, type or upload the signature, then click the page to place it. The signature is stored on this device for next time. Click change to create a new one.
Apply and download
Click Apply and continue. The results screen lets you preview the finished PDF, download it, save it to Google Drive, open it in another tool, or delete the files.
Style and copy what you add
Click a placed item to show its options. Text has font, size, bold and color; marks have color. Edit text changes the wording, and Copy to all pages puts the item in the same spot on every page. Undo and redo work for every change.
Lock the filled form
If the PDF has form fields, tick Flatten form. The fields become ordinary page content, and the answers can no longer be edited.
What ends up in the file when you fill and sign
Text, marks and signatures are stored differently
Everything you place yourself is written into the page content when you click "Apply and continue", but not all of it in the same form.
- Text and dates are real text in the font you picked. They can be selected, copied and searched, like the rest of the page.
- Checkmarks, X marks and bullets are drawn as short lines and a filled circle, not as font characters. That's why they look the same in every reader and never turn into an empty box or a question mark.
- Signatures and initials are PNG images, including typed ones. A signature typed in a script font is a picture of your name, so it can't be searched or copied as text.
If you use "Copy to all pages" on a signature or initials, the image is stored in the file once and drawn on each page, so a 30-page contract doesn't carry 30 copies of it.
How form field answers are written
When you type into a real form field, the answer goes into the field itself, and the tool also draws how the field should look. A few rules apply:
- A field with a character limit is cut to that limit. Single-line fields turn line breaks into spaces.
- A multi-line box set to automatic text size gets a fixed size between 6 and 12 points, based on the height of the box, so a long answer doesn't come out as one giant word.
- Font, size, color and alignment you choose for a field are saved into the field, and the font is embedded in full. If someone edits that field later in another reader, they type in the same style.
- Fields marked read-only by the form's author are shown dimmed and can't be changed.
Signature fields show "Sign here". Clicking one fits your signature image into the box. That's a picture of a signature placed on the page, not a certificate-based digital signature, and the field itself stays empty. If the other side needs a signed field their software can verify, ask what they accept.
Getting a clean result from an uploaded signature
A drawn signature is trimmed to the ink with a small margin, so it places neatly. An uploaded image is used as it is, converted to PNG at its full pixel size. Two things follow from that:
- Crop the photo tight around the signature before uploading. Any white paper around it stays in the image and can cover form lines or text when you place it.
- Shrink large photos first. A 12-megapixel snapshot from a phone camera is stored at full size, which can add several megabytes to the finished PDF.
When the form is left live
Without "Flatten form", the fields stay editable and untouched fields keep their existing look. If one of them had no stored look and none could be built, the file asks readers to redraw the fields when they open it, so those fields can look different from one reader to another. Flattening avoids that.