pdfFiller is the SignOnTheGo and AlphaTrust PRONTOSign™ alternative that respects your time and budget

Over 64 million users choose pdfFiller for its award-winning ease of use, comprehensive functionality, and unbeatable price.
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— from 710 reviews
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Experience effortless PDF management with the best alternative to SignOnTheGo & AlphaTrust PRONTOSign™

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Create and edit PDFs

Instantly customize your PDFs any way you want, or start fresh with a new document.
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Fill out PDF forms

Stop spending hours doing forms by hand. Complete your tax reporting and other paperwork fast and error-free.
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Build fillable documents

Add fillable fields to your PDFs and share your forms with ease to collect accurate data.
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Save reusable templates

Reclaim working hours by generating new documents with reusable pre-made templates.
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Get eSignatures done

Forget about printing and mailing documents for signature. Sign your PDFs or request signatures in a few clicks.
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Convert files

Say goodbye to unreliable third-party file converters. Save your files in various formats right in pdfFiller.
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Organize your PDFs

Merge, split, and rearrange the pages of your PDFs in any order.
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Securely store documents

Keep all your documents in one place without exposing your sensitive data.

Customer trust proven by figures

pdfFiller is proud of its massive user base and is committed to delivering the greatest possible experience and value to each customer.

Switch from SignOnTheGo & AlphaTrust PRONTOSign™ to pdfFiller in 4 simple steps

1
Sign up for free using your email, Google, or Facebook account.
2
Upload a PDF from your device or cloud storage, check the online library for the form you need, or create a document from scratch.
3
Edit, annotate, redact, or eSign your PDF online in seconds.
4
Share your document, download it in your preferred format, or save it as a template.

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an all‑in‑one PDF software

Save up to 40 hours per month with paper-free processes
Make quick changes to your PDFs even while on the go
Streamline approvals, teamwork, and document sharing
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The leading SignOnTheGo & AlphaTrust PRONTOSign™ alternative for SMBs and enterprises

Break free from paperwork setbacks with digital workflows.
Advanced eSignatures
Enterprise-ready features
Integrations and API
Organizations & Admin Dashboard

Find out why users choose pdfFiller over SignOnTheGo and AlphaTrust PRONTOSign™

Read more or give pdfFiller a try to experience the benefits for yourself
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Ease of Use
9.0
Quality of Support
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Ease of Setup
4
The site is a bit slow, and often will freeze during filling. Otherwise it is well worth the $72.00 I paid although it was supposed to be a free trial for 30 days.
Ashlin M. I
5
not a computer savvy person but was able to follow the instructions
Cindy C

Pdf Editor Online: Try Risk Free

This chart represents a partial list of features available in pdfFiller and Other solutions
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Sign online
Request signatures
Encrypt folder
Edit document
Modify pages
Find any form
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Try the best SignOnTheGo alternative - pdfFiller

There are too many aspects to evaluate between SignOnTheGo and AlphaTrust PRONTOSign™ and both of them are great options for creating your workflow. Nonetheless, to make things easier for you as you search for a better solution, we want to offer you a great alternative to both - pdfFiller. It’s a professional editor that allows you to generate professional-looking documents yourself with the help of an interactive form builder. Edit, fill, and sign documents in seconds. In other words, our service handles problems that you may face regarding document management.
Get everything you need to create professional-looking PDF files in the shortest amount of time:
Massive Forms library
Powerful form builder
Built-in editing tools for signing, notarizing, and modifying native content
Industry-leading security
Comparing SignOnTheGo and AlphaTrust PRONTOSign™ doesn’t really matter when you only need a single solution like pdfFiller to tackle your PDF needs. Get all the necessary features in just a single browser tab. Create, modify, manage and send documents professionally.
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