What is Fill & Sign — Free PDF Filler and Signer and who is it for?
Fill & Sign is a PDF tool for completing and signing forms. Open a document, fill in the fields, add a signature and send it back. It runs without an account and without uploading files. It suits anyone who regularly receives PDF forms to complete, such as contracts, applications or agreements. The app opens PDF files and works offline, so forms can be handled on the device without sending documents to a server.
Fill out and sign PDF forms in the browser, then send them back.
What you can do
Open a PDF form and fill in its fields.
Add a signature to a document.
Use the app offline without an account.
Open shared PDF files directly in the app.
Publisher / site
otterholte.github.io
Category
Productivity
Platforms
Web
Languages detected
en
APP PREVIEWS
See Fill & Sign — Free PDF Filler and Signer before you open it.
Browse the available app previews. Select any image to open a larger view.
BEST FOR
Decide whether Fill & Sign — Free PDF Filler and Signer fits your needs.
Useful for
Open a PDF form and fill in its fields.
Add a signature to a document.
Use the app offline without an account.
Open shared PDF files directly in the app.
Before you choose
Available on Web
INSTALL GUIDE
Install Fill & Sign — Free PDF Filler and Signer from its official site.
1
Open the official web app
Use the Open site button above in a current version of Chrome, Edge or Safari.
2
Choose the browser install action
Select Install app, or use Add to Home Screen from the browser share or main menu.
3
Confirm and launch
The installed app opens from the device launcher. Browser and platform support can vary.
PWA AUDIT
How well does Fill & Sign — Free PDF Filler and Signer work as an installed app?
The product overview above helps you choose the service. This independent technical section checks its install experience, browser integration and current PWA signals.
CAPABILITY REPORT
Detected web app capabilities.
DeclaredDetectedVerifiedNot found
declared
Standalone app window
Requests the “standalone” display mode when launched.
experience
not found
Advanced window modes
Declares preferred window modes beyond the basic display setting.
experience
not found
Preferred orientation
Requests a preferred device orientation.
experience
not found
Custom launch behavior
Controls how repeated launches reuse or create app windows.
experience
detected
Service worker detected
Registration appears in the page source; offline behavior still needs a runtime test.
experience
not found
App shortcuts
Offers quick actions from the installed app icon.
integration
declared
Receives shared content
Can appear in the system share sheet using POST.
integration
declared
Opens 2 file types
application/pdf, .pdf
integration
not found
Protocol handlers
Can open supported custom link protocols.
integration
not found
Related native app
Links the PWA to a related application on another platform.
integration
not found
Install previews
Provides screenshots for richer installation prompts.
presentation
declared
Adaptive Android icon
A maskable icon can fill different launcher icon shapes.
presentation
not found
Monochrome icon
Provides a themed single-color icon for supported surfaces.
