Lock PDF and Merge PDF for Computer 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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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Every PDF tool you need to get documents done paper-free

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.

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.

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.

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.

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.

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:
It's been very good working with PDF Filler. Makes saving forms so much easier. I only have one complaint. When it comes to dates, I usually need to write it as year-month-day; but PDF Filler is already programmed as day-month-year so I have to keep on erasing dates and fill it out by hand, which is annoying.
2017-12-19
The product is excellent, but very expensive for an occasional user. I paid a lot of money just to download two documents. Surely it would not be difficult to categorise number of forms required, and a calculated price accordingly? I will probably not require another form for 12 months or more. Unfortunately, it leaves a bad taste in the mouth.
2018-07-25
I needed this program badly, just in the time for distance learning because of the Corona Virus. It was easy to navigate through and use. My only wish is that I would have found this program years earlier! I will update my rating to include the student (recipient) experience of pdfFiller after they return their first homework assignment.
2020-04-15
What do you like best?
Easy to use, saves your signature, can merge
What do you dislike?
The saving document feature is a little slow
What problems are you solving with the product? What benefits have you realized?
Easy to fill PDFs without printing. Can fill as I he info and mAkes edits a breeze
Easy to use, saves your signature, can merge
What do you dislike?
The saving document feature is a little slow
What problems are you solving with the product? What benefits have you realized?
Easy to fill PDFs without printing. Can fill as I he info and mAkes edits a breeze
2019-05-31
I do billing from home and this website made it possible for me to do this
Very easy to use. I am able to do the dental billing I need to do from home. It saves it for me and I print out what I need for my records.
2017-09-27
I signed up for the $1 trial but did not want the 1 year subscription -- refunded in two days!
I signed up for the $1 trial but did not use it for whatever reason. I have adobe DCF but used PDF filler one time to check it out or whatever. In any case, one month later I get hit with the $102.10 one year subscription charge I didn't see coming. I call expecting to be on hold for two hours.. but .. no... about a few minutes on hold and they refunded the whole thing.. refund hit in two days. So, I believe they should be applauded for that. I'm sure some people love it and go for the subscription. But it's really nice to know they're actually honest and refund the money if you ask.
2023-07-18
Amazing service at the chat
Very friendly service at the chat. My request for refund was accepted without questioning. Never experienced such a fast and friendly customer service.
2022-01-12
Just happy I can put the forms I need…
Just happy I can put the forms I need in one place and continue to use them without having to redo them every time.
2021-10-31
Pdfiller is the best I have ever used
Pdfiller is the best I have ever used. They provide all the tools you need to do whatever you need with your documents. Customer support is also the best. They solve your issues right away. I highly recommend PDFfiller.
2020-10-09
Lock PDF and Merge PDF for Computer
The Lock PDF and Merge PDF feature for computer offers a comprehensive solution for managing your PDF files. With this feature, you can secure your documents and combine multiple PDFs into a single file effortlessly. It serves as an essential tool for anyone dealing with sensitive information or needing to streamline their documents.
Key Features
Secure PDFs with password protection
Merge multiple PDFs into one file
User-friendly interface for easy navigation
Options to customize your document settings
Compatibility with various operating systems
Potential Use Cases and Benefits
Protect confidential files for business meetings
Combine project reports into a single document for easy sharing
Organize personal documents, such as receipts and invoices
Ensure compliance with data protection regulations
Simplify document management for academics and researchers
This feature resolves several common issues. First, it keeps your sensitive documents safe from unauthorized access, providing peace of mind. Second, by merging PDFs, you streamline file management, making it easier to find and distribute information. Whether you need to secure a contract or compile a report, this feature delivers an effective and simple solution.
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
How do I combine secured PDFs without password?
Click File > Print to open the print dialog. Click the PDF menu button at the bottom of the print dialog and select Save as PDF. Enter a file name and location for your new PDF file when prompted. The new PDF file will have the same contents as the original, but no password.
How do I merge PDF files that are locked?
File→Create for creating a new PDF file.
Choose Combine Files Into a Single PDF option.
Click on Add File, add all the PDF files you want to merge.
Add password of the locked PDF files.
Click on Combine.
File→Saves to save the PDF file.
How do I lock a PDF from copying?
Open your PDF.
Go to Protect Tab.
Click Password.
Enter Password.
Select the Printing allowed dropdown.
Select None means to prevent printing.
Select the Changes Allowed dropdown.
Select None -means the highest level of protection.
How can I unlock a PDF for free?
Drag and drop your document in the PDF Password Remover.
Confirm that you have the right to the file and click 'Unlock PDF!'.
The decryption process should start right away.
Modify your PDF further, or click 'Download File' to save the unlocked PDF.
How do I copy and paste from a locked PDF?
Open the Secured PDF. Download and install the Google Chrome browser on your computer and launch it.
Print the Secured PDF. Choose the “Print” option in the top-right corner of this Chrome browser.
Save as a Normal PDF. Click the “Save” button to save it as a PDF.
How to Lock PDF and Merge PDF for Computer - video instructions
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