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

Getting Started

Save time splitting your PDFs with AltoSplitPDF. Upload a document from your device or click one of the cloud storage icons to add a file from an online location.

Split Your PDFs

Wait for your upload to finish. Click the pages you’d like to split or specify a page range, then press ‘Split Now!’ Your new document will be generated immediately.

Use it Free of Charge

AltoSplitPDF enables you to split any large PDF into separate files for free. Try it now and get an unlimited number of free conversions.

Secure Data Processing

Each of your files is securely uploaded, transferred and processed via an encrypted connection. As soon as you close the app, your data is deleted from the server.

Compatible with Major Platforms

Run AltoSplitPDF directly in your web browser on any computer or smartphone. All you need is a stable Internet connection.

Managing PDFs in the Cloud

Free up some space on your computer and work faster than ever before by processing your documents online.


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

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
Can someone tell me which software or online platform is the best if I want to reorganize content in a large PDF file and make the data easily accessible. Thank you!
The fastest and most convenient way to reorder pdf files i.e. split them, change the page order, etc. would be uploading them to It’s a fully functional digital workflow solution that allows you to perform all kind of operations with your data, not only simple ones. In order to start working with the platform, simply upload your file(s) and follow the instructions.
By David on April 23, 2018
Is there a freeware tool I can use to split my scanned book into multiple separate PDF files and save them to a folder on my disk? Online solution is preferred!
With AltoSplitPDF you are able to split your electronic book as well as make all kinds of text edits to your newly created files afterwards. The best thing about it is that it doesn’t require installation. Try it now and solve all your tasks in the most efficient way.
By Earl on March 15, 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 guide: How to split a PDF into multiple documents online

  1. Open the app in your web browser.
  2. Click Choose File. Select a document stored on your computer’s hard drive or phone storage and upload it to AltoSplit.
  3. Click a cloud storage service icon (Dropbox, Google Drive or OneDrive) to add a file stored online.
  4. Specify the page range or select the pages you want to split, then click Split Now!
  5. Wait for the upload to complete.
  6. Click Download Now to save the resulting PDF to your device or cloud storage service.
  7. Click Work on your PDF to edit the document online (i.e. redact, sign, or share it with another user).
  8. Click Start over again if you want to repeat the procedure or process another PDF.

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