An Easy Way to Split a PDF into Separate Files

An easy and free solution for splitting large PDFs into separate files. No installation required.
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How it works

Upload your PDF

Save time splitting your files with AltoSplitPDF. Upload your document via the drag & drop box and delete it if you need to process other documents.

Split a PDF document

Simply upload your doc and choose the pages you’d like to extract. With our service, you do not need to spend your time installing special software of any kind.

Completely Free

Save your money with our absolutely free app. There is no need to purchase any additional software to change your docs.

Encrypted file transfer

With our encrypted connection your files are securely processed. We offer additional protection by deleting all your docs right after processing them.

Compatibility with major platforms

You can run the app in any browser and split your PDFs no matter what operating system you use. The service is compatible with MacOS, Windows and Linux.

Splitting PDFs in the cloud

The storage space on your device or computer won’t be consumed as all our tools are kept in the cloud. Use any internet-connected device to change your PDFs.


File extension .pdf
Internet media type application/pdf
Description: PDF is a rather convenient file format to present and exchange documents. It guarantees reliability, works independently of any kind of software, hardware, or OS. The PDF format was invented by Adobe. Now it is an open standard maintained by the International Organization for Standardization. PDFs may contain links, buttons, form fields, audio and video content and some other elements. PDF files can be password-protected, edited and signed electronically.
Technical Details: PDF file format meets ISO 32000 standards for electronic document exchange. This includes special-purpose standards i.e. PDF/A used for archiving, PDF/E for engineering, and PDF/X for printing. The PDF includes the following technologies: a subset of the PostScript page description programming language, a font-replacement system, a structured storage system to bind these elements and associated elements into a single file.
Developed by ISO
Initial Release: 15 June 1993
Useful links:


Customer Questions and Answers

I want to split a large PDF file into two smaller ones so I could view them on my Kindle. I already tried one app but the size of the resulting file was even bigger!
Hi, may I ask which app were you using? AltoSplitPDF enables you to split your PDFs into as many pieces as you like. Never heard any complaints about it. All you need is to be connected to the internet.
By Dan on May 21, 2018
What do I do if my PDF can’t be attached to an outgoing email because of its size? How do I reduce it? Thanks!
You can convert your big file and save it in a different format. But in this case you have to be very careful with the resulting quality. Some formats use compression which makes your file look distorted. I think you should try AltoSplitPDF, an online freeware tool that enables you to split your PDF into several files and have them attached to your email one by one. You are welcome!
By Raymond on May 18, 2018
I have a large PDF file that I want to break into several files. How can I do this online? Are there any programmes or websites?
While using online services you have to be careful and choose verified and secure platforms. Try AltoSplit to divide your PDF file into multiple parts. The AltoPDF platform provides a free and secure service allowing you to change your documents while on the go.
By James on April 17, 2018
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How Do Users Rate AltoSplit?

Our service faciliates the work of over two million people splitting PDF documents online every year.


How to Split PDF Files?

People dealing with stacks of papers everyday prefer a digital document management system over traditional means. Digital document management systems allow users to streamline their workflows. As scanning technologies improved, both businesses and individuals took advantage of PDF files. One of their primary benefits is always having your documents on hand and being able to share them, even while on the go.

However, you may need to change your PDFs or make some edits. For instance, while scanning your forms, contracts or agreements you may accidentally add the odd page or scan it twice. To eliminate such a problem, you don't have to start the process all over again. The solution is to locate the services of an advanced PDF splitter.

How To Split PDF Documents into Single Pages or Smaller Files?

In the past, splitting one large PDF document into separate small files was a complicated process. You probably had to rescan a document again and again without unnecessary pages and then save each scan individually. As technologies improved, powerful online and desktop splitting services made their way to market and allowed users to divide any document in seconds. It may be quite difficult to opt for an appropriate service as the internet is overwhelmed by choice. To eliminate this hassle, we offer digital PDF splitting tools that are very user-friendly and give you the ability to accomplish document transformation in a matter of seconds. Unlike offline services, they provide customers with a great deal of benefits:

  • no downloading or installing any additional software
  • most tools can be used for free
  • customers are provided with an intuitive interface and a step-by-step instruction
  • the security and safety of processed PDFs are ensured
  • compatibility with all major OS’s such as Linux, Windows, Mac, Anroid and iOS
  • optimized for mobile devices
  • ability to split a large file into smaller ones in the cloud
  • automatic feature updates
  • provide a set of editing tools for document editing after transformation

A high priority for PDF splitting services is ensuring that your files are secure. They provide customers with an encrypted transfer and delete uploaded pages from the server after they`ve been processed.

How to Split a PDF into Separate Files?

If you opt use an online PDF splitting service, the process of dividing your PDF into will be a breeze. The order of operations is simple and can be completed in seconds. Look through the simple steps required:

  • first, open the digital document splitting service
  • then, upload the PDF you want to divide by dragging and dropping it into the box
  • after clicking the “Start now” button your file will be processed
  • finally, download the newly created PDFs to your device or save them in the cloud
  • if necessary, continue editing your documents