Merge and Compress PDF 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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Last updated on Dec 12, 2023

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:
Pretty good so far. Was a little surprised that I had to pay once all the work was done. But its okay, have used it a couple of times and its working.
stan m
2016-06-14
The service produces a very handsome document, and facilitates changes when necessary. I had a little trouble navigating back and forth between the document and the print function, but that may be attributable to my lack of familiarity with the product.
John R
2017-11-28
Really helps me with any random form that comes my way. I hated printing out, filling out by hand and scanning. This keeps it simple and discreet! Easy to get people to fill out forms, too.
Amanda G
2019-01-30
Something went wrong, when I was filling once it stopped me suddenly. It saved the work, luckily. But I lost two minutes to restart my job, and this wasn't nice.
Aldo T
2020-04-02
My life is so much easier with PDF… My life is so much easier with PDF filler. I can instantly complete any paperwork I have. I was able to figure out how to use it without reading any instructions at all. Even better, I am saving cost and waste of printer and paper.
Kelly D
2020-03-27
Easy to navigate Easy to navigate. I didn't have cash to send correspondence to the IRS. This is a great tool for sure. It's more difficult submitting a review though, just saying. Your date feature sucks.
james gatuma
2023-07-23
What do you like best? I am never going to read instructions so it was great how this software is intuitive and you can begin work right away. The customer service is absolutely the best I have ever encountered. Super supportive, super polite and super efficient. Would I recommend it, duh.......1000%!!! What do you dislike? Absolutely nothing! And I am not a company shill, just impressed! What problems are you solving with the product? What benefits have you realized? Just being able to fill out pdf forms simply and easily.
Dave Hamm
2022-01-04
Their customer service is great! Joyce helped me out and was super helpful and considerate! Best customer service experience I’ve had. Thanks for the quick response!
Sarah B.
2020-05-03
I thoroughly enjoyed using the platform which made editing and using the documents incredibly easy. Their customer service is also excellent and went above and beyond to accommodate my request immediately.
Molly M
2020-04-24

Learn how to merge and compress PDF files online

If you're used to combining and reducing the size of your PDFs using different platforms, we're glad to offer you a better way to merge and compress PDF files online. Using this holistic solution, you can edit your documents in minutes, even without switching your browser tab.

Use the instructions below to see how simple the process can be:

01
Launch the editor. Open the pdfFiller website and log in to your account or register a new one.
02
Select documents. Click Add New and choose files from your device or the cloud.
03
Upload samples. Select Merge and edit to create a new file and edit it or Upload separately to combine them with other documents from the system
04
Rearrange pages. Move selected pages left or right, delete them, or add new ones.
05
Confirm changes. Select Done to close the editor.
06
Export the document. Quickly save your sample as a PDF by clicking Download on the right sidebar or get the file in DOCX, XLSX, PPTX, or JPEG by clicking Save As

Save time. Merge and compress PDFs with pdfFiller.

Merge and Compress PDF Feature

The Merge and Compress PDF feature simplifies your document management. With this tool, you can easily combine multiple PDF files into one and reduce the file size without sacrificing quality.

Key Features

Combine multiple PDFs into a single file
Reduce file size to save storage space
Maintain high-quality output
User-friendly interface for easy navigation
Fast processing for quick results

Potential Use Cases and Benefits

Perfect for students who need to submit assignments as one document
Ideal for businesses preparing reports for presentations
Useful for families organizing photos and memories into a single file
Helpful for anyone wanting to email large documents without exceeding size limits

This feature solves your document challenges by allowing you to manage multiple files efficiently. Instead of sifting through various PDFs, you can create one organized document. Moreover, by compressing the file size, you make it easier to share and store your files. Enjoy the convenience and efficiency of this powerful tool.

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 Use the Merge and Compress PDF Feature in pdfFiller

The Merge and Compress PDF feature in pdfFiller allows you to combine multiple PDF files into one and reduce the file size for easier sharing and storage. Follow these simple steps to make the most of this feature:

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 and Compress PDF' option in the main menu.
03
Click on the 'Select Files' button to choose the PDF files you want to merge. You can select multiple files by holding down the Ctrl key (or Command key on Mac) while clicking on the files.
04
Arrange the order of the selected files by dragging and dropping them into the desired sequence. This will determine the order in which the pages will appear in the merged PDF.
05
If needed, you can also remove any unwanted pages from the selected files by clicking on the 'Remove Pages' button next to each file.
06
Once you have selected the files and arranged them in the desired order, click on the 'Merge' button to start the merging process.
07
After the merging process is complete, you will be able to preview the merged PDF. If everything looks good, click on the 'Save' button to download the merged PDF to your device.
08
If you want to further reduce the file size of the merged PDF, you can click on the 'Compress' button. pdfFiller will automatically optimize the file size without compromising the quality of the document.
09
Finally, click on the 'Save' button to download the compressed PDF to your device.
10
Congratulations! You have successfully merged and compressed your PDF files using pdfFiller's Merge and Compress PDF feature.

With pdfFiller's Merge and Compress PDF feature, you can easily combine multiple PDF files into one and reduce their file size for easier sharing and storage. Start using this feature today and enjoy a seamless PDF management experience!

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
PDF element (Windows & Mac) One of the best PDF merger tools for desktop on the market is PDF element, which is also a powerful PDF editor and converter. With PDF element, you can not only combine multiple PDF files as one but also can customize page range for each PDF to merge without loading page preview.
Drag and drop your PDFs into the PDF combiner. Rearrange individual pages or entire files in the desired order. Add more files, rotate or delete files, if needed. Click 'Merge PDF!' to combine and download your 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