KnowledgeLake Imaging Lock PDF shortcut alternative For Free

Use pdfFiller instead of KnowledgeLake Imaging to fill out forms and edit PDF documents online. Get a comprehensive PDF toolkit at the most competitive price.
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Discover the simplicity of processing PDFs online

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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:
I worked fine for my needs of filling in a PDF file and saving it with data. I would like to see the ability to CREATE a fillable PDF file that I could distribute to others to fill out, save, and return to me.
David S
2015-02-17
I changed my review because of excellent customer service. I had issues with the product that made the program unusable for me and was not happy with the cost. A representative contacted me right away and refunded my money before I could even ask. For that, I am truly appreciative and wish more companies would follow their example.
James
2015-10-19
I think your site is well designed and has substantial potential. But being unfamiliar with all the choices, my initial effort at using your site took a little longer that I had hoped it would. But that is a minor critique. i'll do more exploring at a later date.
robert m
2018-09-26
Fantastic customer service For some reason I needed this and only once. I got the free trial and then forgot all about it until $115.00 was collected from my account, shock horror. All I can say is you have fantastic customer service, I explained my situation and a refund was issued that same day. Both friendly and speedy. Ace by name and by character, much appreciated. 1 star deducted as I would have liked a reminder email when the free trial was coming to an end.
Sam
2024-09-22
Good value for price When using the offer for roughly 40€ per year, PDF filler is a no-brainer when you need to fill in several forms a year for your household / family (e.g. insurances, real estate, etc.)
Tobey Trempeck
2023-10-05
This is an absolutely AMAZING service This is an absolutely AMAZING service, the only reason I had to give 4 stars instead of 5 is due to the cost. To expect people to pay so much money (especially during the pandemic) when everyone needs to work and operate from home is unconscionable. If this service was, say, $12.99/mo. then I would most definitely pay it. However, the monthly cost is nearly three times that high, and it is not something I can afford on unemployment benefits of $235 per week. This service is amazing and efficient, but the company is not being realistic about the current cost of its services. And no, offering annual payments of $200+ is not a viable solution.
Laurel King
2021-03-17
This platform improves the efficiency… This platform improves the efficiency of my workflow as a small trucking company owner. I can quickly edit, sign, fill and forward documents. Caneymon Transport LLC gives 5 stars to PDfFiller.
Yolanda Johnson
2020-06-11
I was just quickly looking for a template and bought the trial package and was fully refunded 2 days later. I was also able to cancel my subscription without any hassles. Keep up the good work !
Karen
2025-03-09
I am very happy to share my Review… I am very happy to share my Review here, PdfFiller is very easy to use Tool and more flexible to edit pdf documents.
RAJESH B
2025-02-13

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