Secure PDF File and Esign PDF for Windows For Free

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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
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Last updated on Dec 12, 2023

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 have only had PDF Filler a few days and the word WOW is not even close to a full description. This is the best thing for PDF since sliced bread. OUTSTANDING!!!!!!
Kristi E
2015-01-23
I have had so far so good of an experince with odffiller, i would like to see new features in a way to match font better as well as some upgrades on the type of documents you can upload
shaeheera
2016-03-16
Well it seems to work OK but I am not thrilled about the price, I haven't used it that much but for anybody that does a lot of form applications it seems like a goods program to have.
Terry N H
2016-06-17
I'm so glad that I can fill in all the forms and documents easily with PDF filler. Before it was so frustrating not to be able to sign my name, PDF Filler is great!
Michele D
2018-01-30
What do you like best?
I love that I can make any document filler-friendly. My handwriting is atrocious. I've completed applications, tax forms, and more. I love that I can move my text around. Love that I can easily insert check marks.
What do you dislike?
Sometimes I struggle a bit with saving my documents. I sometimes want to save one as a blank and one as a completely filled form.
Recommendations to others considering the product:
Yes! It will make your life easier!
What problems are you solving with the product? What benefits have you realized?
It's so easy to change a document I might have goofed up! I can make the change and reprint. Done. It's been a huge timesaver for me. I can prefill certain parts of a form I have to use over and over which saves time.
Jane Leighty
2019-01-28
Paul was fantastic Paul was fantastic. I have been chatting with several other people since April 3 and no one could figure this problem out. I was emailed that this issue had been referred to technical support and they could not provide adequate assistance. As I am not computer friendly, Paul was very helpful. He was very patient with me. I am extremely grateful to him for resolving this issue.
Jack Blaine
2019-04-12
life saving app last min i had some filling out to do. my printers down, this came threw right on time I was able to turn in my document on time thank you PDF Filler.
jessica romero
2020-11-12
It is a great help in editing documents, specially when there are corrections needed to be made. Files that cannot be converted to a Word or Excel file is easily edited here.
June Mae C
2020-09-30
Being a small plumbing business I used PDFfiller for many forms I needed! The ease of filling out the forms was just what I needed!! Being a one man shop I needed every minute of the day! PDFfiller was just perfect - I would pull up invoice fill it out send it off!! $$ in bank!! Perfect for a small Company as myself who needs every short cut to save as much time as possible!! Thanks so much!! Retired Plumbing Contractor Whose only worry now is keeping the varmints away from my garden!!
Fred C
2020-09-24

Secure PDF File and Esign PDF for Windows

Enhance your document management process with the Secure PDF File and Esign PDF feature for Windows. This powerful tool helps you create, sign, and secure your important PDF documents with ease.

Key Features

Create secure PDFs with password protection
Easily add electronic signatures to your documents
Edit and annotate PDFs directly within the application
Integrate with popular cloud storage services
Track document status with delivery notifications

Potential Use Cases and Benefits

Ideal for businesses needing secure contracts and agreements
Useful for remote teams collaborating on document reviews
Perfect for legal and financial professionals managing sensitive information
Suitable for individuals wanting to ensure privacy in personal documents
Great for educators distributing secure forms and assignments

This feature effectively addresses your challenges by ensuring your documents remain confidential and legally binding. You can simplify the process of signing and securing PDFs, which saves you time and reduces potential errors. By choosing Secure PDF File and Esign PDF for Windows, you not only protect your information but also streamline your workflow.

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!

For pdfFiller’s FAQs

Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
What if I have more questions?
Contact Support
Open the PDF and choose Tools > Protect > Encrypt > Encrypt with Password. If you receive a prompt, click Yes to change the security. Select Require a Password to Open the Document, then type the password in the corresponding field.
Open the PDF document or form that you want to sign. Click the Sign icon in the toolbar. The Fill & Sign tool is displayed. The form fields are detected automatically. Click the Sign icon in the toolbar, and then choose whether you want to add your signature or just initials.

How to Secure PDF File and Esign PDF for Windows - video instructions

#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