Struggling with Formstack Documents (formerly WebMerge)? pdfFiller is a highly-rated alternative.

Over 64 million users choose pdfFiller for its award-winning ease of use, comprehensive functionality, and unbeatable price.

Experience effortless PDF management with the best alternative to Formstack Documents (formerly WebMerge)

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

Switch from Formstack Documents (formerly WebMerge) 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 Formstack Documents (formerly WebMerge) 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 Formstack Documents (formerly WebMerge)

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9.1
Ease of Use
9.0
Quality of Support
9.2
Ease of Setup
4
Still getting used the program but like it a lot! I love it -- it helped me fill in some VA medical forms and made them look very professional, plus I could go back and edit as needed. It also allows me to save, print, and email. There are many other features too!
Allen Pelvit
5
What do you like best?
The software is easy to use and easy to understand -- edit most any PDF!
What do you dislike?
I have not found an issue with the software to date.
Recommendations to others considering the product:
Consider this software, it's affordable & easy to use!
What problems are you solving with the product? What benefits have you realized?
This saves a ton of time re-typing documents or printing/ scanning!
Administrator in Sports

See how pdfFiller stacks up against the competition

This chart represents a partial list of features available in pdfFiller and Other solutions
Other solutions
PDF document editor
Erase, redact, draw
Add watermark, images and video
Search text in PDF
Host fillable forms
Signer authentication and security
PDF converter
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Try the best Formstack Documents (formerly WebMerge) alternative - pdfFiller

There are a lot of factors to compare it's a great option for setting up your workflow. Nevertheless, to make things easier for you as you search for a better solution, consider trying pdfFiller as its closest competitor. It’s a professional editor with a user-friendly interface that allows you to generate professional-looking PDFs from scratch using an interactive form builder. Edit, fill, and sign PDFs quickly. With pdfFiller, you can ditch all other platforms you'd been using for separate features.
Just a few reasons why pdfFiller is the best Formstack Documents (formerly WebMerge) alternative:
Large Forms library
Comprehensive form builder
Multiple integrations
Flexible format converters
Industry-leading security
Compared to Formstack Documents (formerly WebMerge), pdfFiller provides two-factor authentication to verify your e-signature and eliminates the risks. Using fillable fields (email, credit card number, gender, etc.), you can fill out the required data in clicks. Choose pdfFiller for a professional document management solution.