Last updated on
Sep 19, 2025
Combine PDF files with our fast PDF merger For Free
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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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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.
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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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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 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.
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
PDFfiller is a great tool that allows me to conveniently complete forms that result in a professional look. The verified signature is a useful feature that I really appreciate since it streamlines the completion process on numerous forms.
2015-09-24
PDF Filler is very convenient and well thought through. Now, if it only integrated with my tax return online service provider and auto-populated forms, ditto all others, it would be perfect.
2018-05-29
I am , frankly, very pleasantly surprised that the site had access to seemingly very esoteric Probate forms from Virginia courts. The process was intuitive.
2019-05-02
What do you like best?
The eraser feature and the signature features are what I like best
What do you dislike?
That for some semi-governmental organizations they will only accept a document if Adobe PDF is used and PDF Filler isn't acceptable
Recommendations to others considering the product:
This software defintely takes care of all your needs.
What problems are you solving with the product? What benefits have you realized?
I sign and fill out most of my contracts and agreements with it
The eraser feature and the signature features are what I like best
What do you dislike?
That for some semi-governmental organizations they will only accept a document if Adobe PDF is used and PDF Filler isn't acceptable
Recommendations to others considering the product:
This software defintely takes care of all your needs.
What problems are you solving with the product? What benefits have you realized?
I sign and fill out most of my contracts and agreements with it
2019-08-15
Tree saver
My son has to do virtual school with everything going on at the moment. This is great for filling out worksheets instead of printing and killing trees
2020-04-02
Easy to Use
Easy to Use, Excellent Editing Techniques. Loved the opportunity to email, fax and input notes. Especially loved the notification to be sent to me when my email is accessed by the recipients. GREAT SERVICE! I plan on keeping this service and using it not just for editing PDF's sent to my business, but for creating my own. THANKS PDFfiller!!! LOVE YOUR PRODUCT AND THE LOW PRICE TO USE IT.www. giftbaskets-usa. com will definitely place a link to your site on our page just for having a great service!!! No strings attached!! Respectfully,Owner of GiftBaskets-USA
2019-02-17
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
What do you like best?
I like the fact that it is a browser-based software, no download required.
What do you dislike?
That fact I most dislike is that you can't pay per use, as I don't edit pdfs very often.
Recommendations to others considering the product:
Make sure to cancel your subscription after you are done using it
What problems are you solving with the product? What benefits have you realized?
The problem I was solving using this was filling out a housing application for an apartment. This was very helpful and even better than acrobat in terms of placing text.
2021-08-16
I love it ! Ive had so problems tring to find a app that i actully could use .This app works great. Its saved me a huge headache
THANK YOU!!
2021-05-21
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.
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After selecting the files, click on the 'Open' button to add them to the merger tool.
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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.
07
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.
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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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