Easily Merge and Reduce Size Of PDF online 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
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Discover the simplicity of processing PDFs online

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Upload your document in seconds
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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
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025

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

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:
Wonderful overall as it allows me to type instead of hand write certain forms. I am hoping that it will be easier to use to line all cells up so it looks more neat.
Marta
2014-08-28
I used it when I was having Turbo Tax Problem. It was easier because I knew what to fill out. I work for an evnet company, this could revolutionize our permit process.
Nicholas M
2016-03-17
Great for using templates I work in real estate investment and handle documents and other forms that are basically fill-ins for our tenants. PDF Filler has to make the job 300 times easier because it will add space or make everything look like its in its right space. It makes filling out a document legibly easy and fast so you then can be more productive in your work day. There are similar programs that allow you to do the same thing it might change spacing, or other aspects of a document.
Alejandra M.
2018-05-04
Enjoyable and functional. Ease of use, functionality, and security features. I like the automatic lock out for the encryption and I enjoy the accuracy in identifying areas that need to be filled out. That I cannot move folders within folders under the encrypted area. I would like to be able to drag folders into other folders. I would also like to merge more than 5 documents at a time.
Gabriel P.
2017-11-14
Very easy to use I am excited to learn all the features the software has to offer. I am so happy i can take current PDF files and turn them into filliable files. This has been very helpful as i started this position and can't always find fillable files.
Jennifer F.
2017-11-14
So far this program is a game changer. I wish it was cheaper (a discount for teachers on a year subscription would be wonderful!!) but I like what I am seeing so far;)
Elizabeth L
2020-08-23
Recommended for easy and trustworthy service I was searching for a safe and efficient way to convert a few PDF file on the internet when I came across pdffiller.com and next thing i did was get a subscription since the tools I used was so helpful and seamless. The customer service is fast, reliable and helpful especially Mr. SAM who helped me with my subscription and account details. Kudos and keep up the great work pdffiller team.
Ashwin lingaiah
2020-08-08
I didn't realize how much use I would… I didn't realize how much use I would make of this program, or the range of functions that it offers. I just got the free-version at first because I needed a digital signature. But now, as an academic, I find I use it all the time to share and to sign documents: now that everything is online and we have limited contact, this has become more important. I can't say that I've mastered or even noticed all the file features this program offers, but almost every time I use it I discover something new. Well worth the money!
bill new
2020-06-09
Highly Recommend! I have been using PDF Filler for some time now, and I am beyond satisfied with their service. The platform is incredibly user-friendly, making it easy to edit, sign, and manage documents with just a few clicks. The documents they provide are always professional and up-to-date, ensuring that I have access to the most current forms and templates. What sets PDF Filler apart is its efficiency and reliability. Whether I need to complete a simple form or handle more complex document processing, the platform delivers every time. Their customer service is also excellent, providing quick and helpful responses whenever needed. I highly recommend PDF Filler to anyone looking for a seamless document management solution. It has made my workflow so much more convenient and efficient. Five stars all the way!
Sydney Taylor
2025-03-18

Tips on how to Merge and Reduce Size Of PDF online

If your day-to-day workflow involves editing or processing many PDF files, the range of your editor’s functionality will determine your productivity and capacity throughout the working day. If you use the right software for your daily jobs, to Merge and Reduce Size Of PDF should be a fast and straightforward process. Try out pdfFiller to access any document feature in seconds and focus on the value of your projects.

Using this robust online editor, you have access to your document history from any device and make all the changes you need at any time. The intelligible toolbar provides every functionality within a click, so you do not have to spend much time onboarding or getting additional training. Create, modify, share, add fillable fields, and collaborate on your paperwork successfully.

Check how easy it is to Merge and Reduce Size Of PDF with pdfFiller

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Visit the pdfFiller website and log in to your account. If you are a new user, you may sign up a new profile in a few clicks.
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Proceed to the Dashboard and import your file by clicking + Add new. Utilize the handiest method to add it: upload, locate a template, link it from a storage space, or simply insert the URL.
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Now you’re set to Merge and Reduce Size Of PDF.
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If required, introduce any additional changes to your document using the extensive toolbar: add content, place fillable fields, annotate, highlight, or insert media.
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Invite other users to work together on the file in real time.
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As soon as done, click DONE to complete editing.
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Upload the document to your account or access it in your document history.

Merge and Reduce Size Of PDF with pdfFiller and get more advanced features to lift up your document processing experience. Work on your paperwork without obstacles on your way to greater efficiency, whether it is an individual task or a collaborative project. Start your free trial and try it now!

Easily Merge and Reduce Size Of PDF

Managing PDF files can be a hassle. Our feature allows you to merge multiple PDFs into a single document and reduce the file size effortlessly. This means you can streamline your work and save storage space.

Key Features

Combine multiple PDF files into one document
Reduce file size without losing quality
User-friendly interface for quick processing
Support for various PDF files and compatibility with all devices
Secure processing to keep your documents safe

Potential Use Cases and Benefits

Streamline document submission for work or school projects
Simplify file sharing with clients or colleagues
Save storage space on devices or cloud solutions
Organize receipts, contracts, or other important documents
Prepare files for presentations or meetings

By using our merge and reduce feature, you can tackle problems like oversized files that are difficult to share and multiple documents that create confusion. This solution offers clarity and efficiency in file management, allowing you to focus on what matters most.

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!

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
You can magnify or reduce a PDF by an exact percentage. Choose the hamburger menu (Windows) or the File menu (macOS) > Print. From the Page Sizing & Handling menu, select Custom Scale. Enter the percentage you want to magnify or reduce the PDF.
If you need to make it much smaller, use the "EXPORT TO" option to convert the PDF to a JPEG or any other image. Once it is an image, use the "PRINT TO PDF" option to send it back to PDF format. It will be much smaller.
How to resize a PDF online? Upload your PDF file. Choose the page size from the dropdown list of common page size standards. You can also set a custom page size. ( optional) Click on "Start".

Video guide about Merge And Reduce Size Of PDF

#1 usability according to G2

Try the PDF solution that respects your time.
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025