PDF Pen — Sign & Fill Instantly icon

PDF Pen — Sign & Fill Instantly

by colin@colinmortimer.com · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 19 Oct 2026

Sign and annotate PDFs directly in Chrome with signatures, text, and checkboxes.

Users
59
+22 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#103K
#86K among extensions
Version
1.0.0
updated 14 Feb 2026

Users

monthly, 8 months
03059Feb 2026Jul 2026Oct 2026
Latest, 19 Oct 2026: 59 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months
001Feb 2026Jul 2026Oct 2026
Latest, 19 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About PDF Pen — Sign & Fill Instantly

PDF Pen lets you sign, fill, and annotate PDF documents without ever leaving Chrome — and without uploading your files anywhere. Unlike other PDF tools that require you to upload sensitive documents to their servers, PDF Pen works entirely on your device. Your contracts, tax forms, and personal documents never touch a remote server. FEATURES Sign in Seconds Click "Sign PDF" on any PDF to open our clean, fast viewer. Type your name, pick from beautiful handwriting fonts, place your signature anywhere, resize it — done. Fill Forms & Add Text Click to place text anywhere on the page. Type directly on the document — perfect for filling in forms, adding dates, or writing notes. Multi-line support with Enter. Check Boxes One-click X marks to fill in existing checkboxes on any form or document. Resize & Reposition Drag to move any annotation. Resize signatures and text with the corner handle — aspect ratio always locked for a clean look. Save as Standard PDF All annotations are embedded directly into the PDF. The output is a standard PDF that works everywhere — email it, print it, upload it. HOW IT WORKS 1. Open any PDF in Chrome 2. Click the blue "Sign PDF" button in the corner 3. Add your signature, text, or checkmarks 4. Click Save to download the signed PDF WHY PDF PEN 100% Private — Your files never leave your device No Account Required — Install and start signing immediately No Watermarks — Your signed documents are clean and professional No Upload Limits — Works with any file size, instantly Works Offline — No internet connection needed after install Completely Free — No premium tier, no trial, no upsell

Growth

WindowUsersChangeRatingsRating
7 days+11+22.9%00.00
30 days+22+59.5%00.00
6 months+47+391.7%00.00

Chrome Web Store search rankings

Where PDF Pen — Sign & Fill Instantly appears when people search the store, with the 30 day change
Search phrasePosition30 days
sign#62+3

Version history

1 versions recorded
1.0.014 Feb 2026

Details

Category
Tools
First seen
14 Feb 2026
Size
1.7 MB
Languages
en-US
Pricing
Free
Extension ID
homfkcnioefcmlobgiogajonnkheafoh

Permissions and risk

Minimal riskimpact 0, likelihood 2
Permissions
activeTabscripting

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