Last updated on
Sep 19, 2025
Combine PDF files with our fast PDF merger For Free
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Discover the simplicity of processing PDFs online
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Fill out, edit, or eSign your PDF hassle-free
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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:
I used the service like the service, but until I got to print a copy of the SR-1 form, I thought I was using the government's free website for submitting an SR-1 form. I want to cancel it because I will not need to use it again. So, please cancel my account and service. Please also send an email to me confirming that you have cancelled the service. Thank you.
2018-10-10
Works fine for my purposes (signing)
Works fine for my purposes (signing). Similar to Adobe Acrobat. 30 day trial then $10/month if you dont cancel.
2019-07-10
What do you like best?
The ability to merge and delete pages from pdf documents, and literally edit any pdf document I need to edit! PDF Filler has saved my life many times!
What do you dislike?
Nothing, I mean it! Absolutely nothing. Mayyyyyyybe the ability to split documents, but really the other options pdfFiller has let me to in that aspect have been amazing.
Recommendations to others considering the product:
I have none, it's amazing!!
What problems are you solving with the product? What benefits have you realized?
I'm merging, I'm deleting unwanted pages, I'm edited...I'm doing all the great things! I am absolutely more productive as a result of pdfFiller.
2022-02-08
i enjoyed typing up the form i needed…
i enjoyed typing up the form i needed with pdffiller it really helped me create the form that i needed. the only thing wrong with it was not having spell check. thanks again
2021-11-24
I REALLY LIKE THIS PROGRAM THE ONLY…
I REALLY LIKE THIS PROGRAM THE ONLY THING I WISH IT HAD MORE TOOLS LIKE MAKING CIRCLES TO CIRCLE MY TIMES ON MY CALENDAR.
2021-10-28
What do you like best?
Love all the forms and how it is so easy to edit forms
What do you dislike?
Love everything about the program! Highly recommended
What problems are you solving with the product? What benefits have you realized?
Using it for my real estate and property management business
2021-10-26
Took a little time to figure out how to…
Took a little time to figure out how to do more than one signature on a single document, but the Support Team was helpful and patient with me as I learned.
2021-02-17
This is a great program that is more…
This is a great program that is more than just a PDF Filler program. It is great to send files, work on files across a group, and to edit PDFs. Very helpful!
2021-02-05
WENT GREAT WHEN I FIRST USED IT SHOWNING ME STEP BY STEP THEN WHEN I USED IT MYSELF I BECAME A MIND OF ITS OWN SOMETIMES TRYING TO UNDERLINE OR GO BACK TO CORRECT SPACES I MAY JUST NEED MORE TAINING
2020-04-24
How to combine PDF files in seconds
pdfFiller offers you a quick and easy way to combine PDF documents into a single file without having to install any software. The PDF merger helps you keep your records organized and consistent, so you don’t have to spend time trying to find all project-related documents. Whether you’re using a desktop computer or working on the go, you can use our smart PDF combiner from any device.
Below is a step-by-step guide that will help you easily combine PDFs into one document.
First, upload or create multiple PDF documents that you intend to merge. Then, select files to be combined, click the More button in the top panel, and select Merge.
Before you click the Merge button, set the document order before you merge PDF files. To do so, simply drag and drop documents in your preferred order. Once finished, enter a name for the newly merged document.
pdfFiller’s PDF joiner also allows you to rearrange pages inside the documents that you’re merging. Click the Advanced settings button in the pop-up window and select the pages that you’d like to be included in the newly merged document. After that, click Merge now.
Once your documents have been combined into a single file, you can download or save them in the cloud of your choice. You can also find your newly combined document on the My Documents page.
Other than the PDF compiler, pdfFiller has a powerful online editor that lets you type and delete text anywhere on a PDF, add sticky notes, watermarks, and logos, highlight, blackout, and draw shapes. Modified documents can be shared with others for signing and completion.
How to merge PDF files
01
Upload or create documents that you need to combine into one file
02
Select documents that you’d like to merge
03
Arrange documents and their pages in your preferred order
04
Combine two PDFs or more files into one
Effortlessly Merge PDF Files with Our Fast PDF Merger Feature
Are you tired of dealing with multiple PDF files scattered all over your computer? Our fast PDF merger feature is here to simplify your life!
Key Features:
Merge multiple PDF files into a single document in seconds
Intuitive drag-and-drop interface for easy use
Support for encrypted PDF files for added security
Potential Use Cases and Benefits:
Combine invoices, reports, and receipts into a single PDF for easy sharing
Merge multiple chapters of an eBook into one cohesive document
Create a comprehensive presentation by merging slides from various PDF files
Solve the problem of juggling multiple PDF files by seamlessly merging them with our efficient PDF merger feature. Streamline your workflow and stay organized with ease!
How to Combine PDF Files with our Fast PDF Merger Feature
Combining multiple PDF files into one document is made easy with our fast PDF merger feature. Follow these simple steps to merge your PDF files quickly and efficiently:
01
Log in to your pdfFiller account. If you don't have an account yet, you can easily create one by signing up on our website.
02
Once you're logged in, click on the 'Merge' tab at the top of the page.
03
Click on the 'Select Files' button to choose the PDF files you want to combine. You can select multiple files by holding down the Ctrl key (or Command key on Mac) while clicking on the files.
04
After selecting the files, click on the 'Open' button to add them to the merger tool.
05
Arrange the order of the files by dragging and dropping them in the desired sequence. You can also remove any unwanted files by clicking on the 'X' button next to the file name.
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Once you're satisfied with the order of the files, click on the 'Merge' button to start the merging process.
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Wait for the merger tool to combine the PDF files. The time taken will depend on the size and number of files being merged.
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Once the merging process is complete, you can download the combined PDF file by clicking on the 'Download' button.
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If you need to make any further edits or modifications to the merged PDF file, you can do so using our comprehensive editing tools.
10
Congratulations! You have successfully combined multiple PDF files into one using our fast PDF merger feature.
With our fast PDF merger feature, you can save time and effort by easily combining multiple PDF files into a single document. Whether you need to merge invoices, reports, or any other PDF documents, our tool provides a seamless and efficient solution. Start merging your PDF files today and experience the convenience of our fast PDF merger feature!
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
Can I modify (redact, annotate, edit) a document?
Sure! With pdfFiller’s powerful editor you can edit any PDF document online, using a desktop computer or mobile device. Type and delete text anywhere on a PDF, add sticky notes, watermarks, and logos, highlight, blackout, and draw shapes.
How to Combine PDF files with our fast PDF merger - video instructions
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