Lock PDF and Compress PDF for Internet Explorer For Free

Drop document here to upload
Select from device
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.
0
Forms filled
0
Forms signed
0
Forms sent

Discover the simplicity of processing PDFs online

Card illustration
Upload your document in seconds
Card illustration
Fill out, edit, or eSign your PDF hassle-free
Card illustration
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

Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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:
So far so good. I don't know why when I add pictures it doesn't come through in the email. Plus, I don't know how to edit a form once I've completed it.
Mark
2014-07-01
So far I am very happy with the service and ease of overall operation. I am not computer educated and have only limited knowledge of software operation.
Sudy B
2015-02-03
The software in simple & I love it: however the video for how to: tells you what the form is used for; not how your software works. (I think that people already know what the 1099 int is used for)
Deborah S
2015-02-05
What do you like best?
I like the ease in completing the forms, the ease in re-locating the form is need be, able to store signatures from officers of the company
What do you dislike?
Not really a "Dislike" just challenging to adjust the fonts to fit in some of the small areas allotted for phone numbers and with the ( ) sometimes challenging to get the numbers to fit properly
Recommendations to others considering the product:
this is a time saver if you have several business forms to be completed. It's easy to use and great for referencing if you need to re-visit the form to tweek.
What problems are you solving with the product? What benefits have you realized?
Ease and time saving in completing credit applications and other business forms
Administrator in Construction
2019-01-09
First time user First time user. It was fast and easy to learn. I hate doing govt forms and this was so simple to use and completed what takes me hours in mionutes.
Richard J Doulette
2023-04-30
This program is such a life saver This program is such a life saver, very easy to use, now people I send documents will be able to read the document, also allows you to sign a document as well. 10 out of a 10.
FDNYbuffL
2021-05-16
PDFfiller Review Inexpensive and easy to use. I would definitely recommend this product to anyone . Easy to figure out and use. Worked well. There wasn't anything I did not like. It was easy to use and figure out.
Greg H.
2020-11-27
It's cheaper than Adobe. It gets the job done and has many options for filling out PDFs. I use it mostly for the Army National Guard and now as a substitute teacher.
Alexis R
2020-11-09
LOVE LOVE LOVE!!!! I've been searching for an easy way to edit my pdf files for so long and after coming across PdfFiller, I will never use any other program! This is my go-to, everyday program that makes my life and job so much easier! 5 Stars!!! Thank You!!!
Joshua K
2020-05-01

Lock PDF and Compress PDF for Internet Explorer

Enhance your PDF management with the Lock PDF and Compress PDF feature, specifically designed for Internet Explorer. You can easily protect your documents and optimize file sizes for better sharing and storage.

Key Features

Securely lock PDF files with password protection
Compress PDF files to reduce storage space
User-friendly interface for straightforward file management
Compatibility with Internet Explorer for seamless access
Maintain file quality while reducing size

Potential Use Cases and Benefits

Protect sensitive documents from unauthorized access
Easily share large files via email or cloud services
Store more files without exceeding storage limits
Facilitate faster uploads and downloads
Improve document management in both personal and professional contexts

By using the Lock PDF and Compress PDF feature, you can address common challenges like file security and size limitations. This tool empowers you to keep your documents safe while ensuring they remain manageable. No more worrying about sending large files or unauthorized access; with this feature, you gain control and peace of mind.

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
To start, upload your file to our PDF compressor. Our tool will automatically start to shrink the file. Continue to modify your PDF document if needed. Download the compressed PDF file to your computer.
Click the Options button at the bottom of the save dialog window that appears. At the bottom of the options window, enable to Encrypt the document with a password option and click OK. Enter the password you want to encrypt the PDF file with and then click OK.
Open the PDF and choose Tools > Protect > Encrypt > Encrypt with Password.

#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