Merge large PDF files 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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Fill out, edit, or eSign your PDF hassle-free
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Download, export, or share your edited file instantly
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Every PDF tool you need to get documents
done paper-free

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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.
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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.
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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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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.
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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.
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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

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users worldwide
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average user rating
4M
PDFs edited per month
9 min
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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

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What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
Recently I needed to fill out several forms from my mortgage servicer. They emailed the forms in pdf format and wanted them signed and returned same day. I don't have a scanner available so I googled and found PDFfiller. I was able to get my forms filled out, signed, and sent back in a very short time. PDFfiller is very easy to use. It really saved my day!
Cheryl S
2014-11-16
I super recommend it! Editing PDFs when you don't have the source document's has never been easier. You can erase what's written and replace it. What I like the least is that this software is a little bit slow sometimes. But overall, I recommend it.
Denise U.
2018-04-04
One time using pdfFiller the first time… One time using pdfFiller the first time saved me time doing a very basic operation (checking off fields when I was entering information from forms into another program). I have used the other program for over 15 years but recently moved from a PC to MacBook Pro. The program for Mac is harder to use than the PC product. I have spent too much time and frustration with that program. After one use, I had to spend much less time with little frustration. I hope it continues as I using pdfFiller
Mark Elftmann
2024-11-14
This program really provides me the opportunity to create the forms and fillable documents that can help speed up my report filling. I enjoy the different ways to sign and initial different documents that otherwise could not be sent back electronically without several steps. I also have created templates and forms for consistent reports and forms I will be using to help speed up my entries. Thank you I do enjoy the program But I only know a little about it. I wish there was a little more user friendly tutorials.
Erryn Crume
2023-06-01
I have very much so enjoyed this app… I have very much so enjoyed this app much easier then any other one that i have worked with .they must have made this for dummies like me ,you cant beat it
michael odom
2022-06-10
awesome pdffiller nothing like this out… awesome pdffiller nothing like this out their by far the best easiest app i have ever use It also has legal forms easy to look up.I spent two days looking for and i came on here and in 10 minutes i had everything thanks a lot
josue beltran
2021-11-03
Used the product a few times (PDF editor) and really liked it but disn't use it enough to warrant purchase. I forgot to cancel the free trial and was charged the annual fee a few weeks later. The company immediately refunded me when I requested it, and did so without question or issue.
Louise P
2021-08-11
Really very convenient, far more handier than the others selectable with a quick google search.....not sure about $20 monthly fee though. An account with a paid service per use would also be handy, but 9/10
Anonymous Customer
2021-06-25
I was struggling to change over my pdf… I was struggling to change over my pdf to filling and this made it very easy. I will always use this site going forward, Thank you!
M&M
2021-05-03

Merge Large PDF Files Feature

Our Merge Large PDF Files feature allows you to combine multiple PDF documents into one cohesive file. Whether you manage reports, presentations, or invoices, this tool simplifies the process significantly.

Key Features

Combine up to 50 PDF files in a single action
Drag and drop interface for easy file management
Maintain original formatting across all merged documents
Fast and secure processing with no file size limits
Cross-platform compatibility for use on any device

Potential Use Cases and Benefits

Organize project documents into one file for easier sharing
Create comprehensive reports from multiple sources
Simplify document submission processes for clients
Reduce email clutter by sending a single PDF instead of many
Improve collaboration by consolidating feedback and revisions

By using our Merge Large PDF Files feature, you eliminate the hassle of managing several documents. Instead of searching through multiple files, you can work with one document that contains everything you need. This solution saves you time, decreases the potential for errors, and enhances your workflow.

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!

How to Merge Large PDF Files with pdfFiller

Merging large PDF files can be a breeze with pdfFiller's Merge feature. Follow these simple steps to combine multiple PDF files into one:

01
Log in to your pdfFiller account. If you don't have an account yet, you can easily create one for free.
02
Once you're logged in, click on the 'Merge' tab at the top of the page.
03
Click on the 'Add Files' button to select the PDF files you want to merge. You can choose multiple files by holding down the Ctrl key (or Command key on Mac) while selecting them.
04
Arrange the order of the files by dragging and dropping them into the desired sequence. You can also remove any unwanted files by clicking on the 'X' button next to their names.
05
If needed, you can click on the 'Settings' button to adjust the settings for the merged PDF file. Here, you can choose the orientation, page size, and margins.
06
Once you're satisfied with the file order and settings, click on the 'Merge' button to start the merging process.
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Wait for the merging process to complete. This may take a few moments depending on the size of the PDF files.
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After the merging is done, you can download the merged PDF file to your computer or save it directly to your pdfFiller account.
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Congratulations! You have successfully merged large PDF files using pdfFiller's Merge feature.

With pdfFiller, merging large PDF files has never been easier. Start combining your PDFs today and streamline your document management process!

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