Last updated on
Sep 21, 2025
Merge and Unlock PDF for free
Drop document here to upload
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
Try these PDF tools
Edit PDF
Quickly edit and annotate PDFs online.
Start now
Sign
eSign documents from anywhere.
Start now
Request signatures
Send a document for eSignature.
Start now
Share
Instantly send PDFs for review and editing.
Start now
Merge
Combine multiple PDFs into one.
Start now
Rearrange
Rearrange pages in a PDF document.
Start now
Compress
Compress PDFs to reduce their size.
Start now
Convert
Convert PDFs into Word, Excel, JPG, or PPT files and vice versa.
Start now
Create from scratch
Start with a blank page.
Start now
Edit DOC
Edit Word documents.
Start now
Discover the simplicity of processing PDFs online
Upload your document in seconds
Fill out, edit, or eSign your PDF hassle-free
Download, export, or share your edited file instantly
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:
I like the online webpage. However, I have trouble using the app. It doesn't have my saved signatures and it won't link to my OneDrive (Office 365) properly.
2016-09-27
I forgot to cancel my subscription…
I forgot to cancel my subscription before the payment date and the customer service operator Sam was very understanding and helpful!
2019-07-01
Program makes editing PDF files easy
Program makes editing PDF files easy. Update standard fields is a piece of cake. Getting familiar with program was fast and easy as well.
2024-02-08
First review
It works better than most others I've tried.It is sometimes a bit difficult to navigate as I dont use it too often. I dii have an issue with support, but they did finally undertand my query and they fixed it up, with a very good explanation.
2023-07-16
Not instinctive but...
Not instinctive but the simple instructions helped me figure out what I needed to do to get the results I needed. Once I got that, it was easy as pie!
2022-08-15
This morning my subscription to PdfFiller was automatically renewed. Once I realized it, I notified the company to cancel my subscription and to provide a refund. Within a short time, I received a response confirming that the subscription was canceled and that the charge was reversed. I would definitely recommend this company and would use them again if I had a need.TL
2022-04-15
Everything is okay so far.
Everything is okay so far, thank god for the merging feature. Only thing that bothered me is the zoom selection sometimes doesn't appear. Might give feedback if i encounter anything else
2021-06-29
Love this...in this world of fill it…
Love this...in this world of fill it out and sign it...pdf filler makes for a much more professional looking document.
2021-01-06
Fabulous for filling out any forms online, especially when online applications are not quite right, you can line up any type of print in the boxes to look professional, even check mark in boxes!
2020-08-16
Merge and Unlock PDF Feature
The Merge and Unlock PDF feature offers a simple way to combine and access your PDF documents. Whether you need to organize files for a project or access secured content, this feature streamlines the process.
Key Features
Easily combine multiple PDFs into a single document
Unlock secured PDFs to access content effortlessly
User-friendly interface for quick processing
Compatible with various file formats and sizes
Fast performance for time-sensitive tasks
Potential Use Cases and Benefits
Organize reports and presentations for work
Compile contracts and agreements into one file
Access important information from locked PDFs
Create a streamlined workflow for administrative tasks
Enhance document sharing for teams and clients
This feature helps you solve common document management issues. By merging files, you reduce clutter and create more organized documents. Unlocking PDFs allows you to access vital information without hurdles. Embrace efficiency and make document handling simpler.
How to Merge and Unlock PDFs with pdfFiller
Merging and unlocking PDFs can be done effortlessly with pdfFiller. Follow these simple steps to make the most out of the Merge and Unlock PDF feature:
01
Access the pdfFiller website or open the pdfFiller app on your device.
02
Sign in to your pdfFiller account. If you don't have an account yet, you can easily create one for free.
03
Once you're signed in, click on the 'Merge & Unlock PDF' option.
04
Upload the PDF files you want to merge and unlock. You can either drag and drop the files or click on the 'Select Files' button to choose them from your device.
05
Arrange the order of the PDF files by dragging and dropping them into the desired sequence.
06
If needed, you can also add more PDF files by clicking on the 'Add More Files' button.
07
After uploading and arranging the files, click on the 'Merge & Unlock' button to start the process.
08
Wait for the merging and unlocking process to complete. This may take a few moments depending on the size and number of files.
09
Once the process is finished, you can download the merged and unlocked PDF file to your device.
10
Optionally, you can also save the merged and unlocked PDF directly to your pdfFiller account or share it with others via email or a link.
By following these steps, you can easily merge and unlock PDFs using pdfFiller's convenient and user-friendly Merge and Unlock PDF feature. Enjoy the seamless experience of managing your PDF documents with pdfFiller!
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 locked PDF files?
Run the tool, click on Add files / Add Folder option to insert PDFs & enter the password.
Click on the Merge option and hit the Next button.
Choose the desired Merge option and select the destination path.
How can I unlock a PDF without the password 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 combine secured PDF 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 can I open a locked PDF file?
Select the password-protected PDF file.
Right-click on it and choose Open with Google Chrome.
Now, right-click on the PDF and choose the Print option.
Next, choose Microsoft Print to PDF and then press the print button.
Now, give a name and saving path to the new PDF file.
#1 usability according to G2
Try the PDF solution that respects your time.