Formstack Lock PDF shortcut alternative For Free

Use pdfFiller instead of Formstack to fill out forms and edit PDF documents online. Get a comprehensive PDF toolkit at the most competitive price.
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Upload your document in seconds
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Fill out, edit, or eSign your PDF hassle-free
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Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025

Every PDF tool you need to get documents
done paper-free

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Create & edit PDFs

Generate new PDFs from scratch or transform existing documents into reusable templates. Type anywhere on a PDF, rewrite original PDF content, insert images or graphics, redact sensitive details, and highlight important information using an intuitive online editor.
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Fill out & sign PDF forms

Say goodbye to error-prone manual hassles. Complete any PDF document electronically – even while on the go. Pre-fill multiple PDFs simultaneously or extract responses from completed forms with ease.
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Organize & convert PDFs

Add, remove, or rearrange pages inside your PDFs in seconds. Create new documents by merging or splitting PDFs. Instantly convert edited files to various formats when you download or export them.
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Collect data and approvals

Transform static documents into interactive fillable forms by dragging and dropping various types of fillable fields on your PDFs. Publish these forms on websites or share them via a direct link to capture data, collect signatures, and request payments.
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Export documents with ease

Share, email, print, fax, or download edited documents in just a few clicks. Quickly export and import documents from popular cloud storage services like Google Drive, Box, and Dropbox.
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Store documents safely

Store an unlimited number of documents and templates securely in the cloud and access them from any location or device. Add an extra level of protection to documents by locking them with a password, placing them in encrypted folders, or requesting user authentication.

Customer trust by the numbers

64M+
users worldwide
4.6/5
average user rating
4M
PDFs edited per month
9 min
average to create and edit a PDF
Join 64+ million people using paperless workflows to drive productivity and cut costs

Why choose our PDF solution?

Cloud-native PDF editor

Access powerful PDF tools, as well as your documents and templates, from anywhere. No installation needed.

Top-rated for ease of use

Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.

Industry-leading customer service

Enjoy peace of mind with an award-winning customer support team always within reach.

What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
Seemless interaction so far, good online support. The company does not yet have the CA Residential Purchase Agreement and Escrow Instructions (effective 11/26/14) available, my only knock. May not be released yet to public as a non-draft document. Ralph 12/13/14
Ralph W
2014-12-13
The free tools and conversion into a… The free tools and conversion into a PDF doc is awesome! The basics is all I need. The only struggle I had was having to figure out how to remove the verified by pdffiller signature date stamp
Lyndra Stacker
2024-04-25
I really appreciate how streamlined and… I really appreciate how streamlined and easy it is to fill out tax docs! Makes it so much more hassle free. My only issue is that it's a 100% free service, as I wish this was something the IRS did a long time ago.
Cara Carrales
2022-01-11
It is very easy to operate and fill in and forward or make a copy if needed. It is very easy to operate and fill in all the information needed in the forms.
Lorraine Villar
2021-08-14
The only complaint that I have is that… The only complaint that I have is that in the editing section it isn't user friendly. For me I had to just rewrite my whole paragraph since it wasn't easy to just copy and paste! Otherwise I am really pleased with the pdf revise site.Jacqueline Radell- McRaney
Thomas McRaney
2021-04-29
I have used PDFfiller and it is a great time saver. By making any form to a can be filled. form online.. Its great to find a form that I need , but its not fillable, this fixs that... Their customer service is great, helped me the fist call..
STEPHEN S
2020-10-11
What do you like best? It’s very user friendly and I can fine forms easily What do you dislike? I don’t dislike any thing , makes printing my insurance certificates a breeze What problems are you solving with the product? What benefits have you realized? Making insurance certificates
Administrator in Insurance
2020-08-30
pdfFiller is user-friendly and the site is easy to... pdfFiller is user-friendly and the site is easy to navigate. I love the fact that a function stays the same until you change it, eg. a font size and format. However, I would like the option to use all the Fonts that I have installed on my own computer. When a page is duplicated, I'd love it if the 'changes' made to the original using pdfFiller, could also be duplicated rather than simply a duplication of the original document. I also can't seem to find a way to cut and paste text to apply it in a different area of the document, which means that the process of replicating a change is more time-consuming, but this could be my current unfamiliarity with the software. I was impressed that within a couple of hours of use, I was offered the option to attend a webinar to improve my understanding.
Hayley B.
2020-07-20
The customer support is outstanding The customer support at pdfFiller is outstanding. They responded quickly, were incredibly kind, and handled everything with great professionalism. It’s clear they truly care about their users. Highly recommended!
Tim van Riel
2025-05-25

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

#1 usability according to G2

Try the PDF solution that respects your time.
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025