Split PDF files online with FlexTools’ free PDF splitter. This tool lets you divide a large PDF into smaller files, extract specific pages, or organize documents according to your needs. Whether you want to cut PDF pages online for sharing or separate individual pages from a lengthy document, you can choose the splitting method that works best for you.
How to Split a PDF Online
Add your PDF. Drag and drop a PDF file into the upload area, or click the button to browse for it. The page count appears as soon as the file loads.
Choose a split mode. Pick Split by Range, Split by Pages, or Split by Size from the mode tabs.
Enter your settings. Type the number of pages per file, add page ranges, click the pages you want, or enter a target size in MB or KB.
Split and download. Click the split button to create your files, then download each one or use the Download All button to save them together.
Why Split a PDF Online?
A single large PDF can be hard to send, slow to load, or difficult to share with the right people. Splitting it into smaller documents solves those problems, without desktop software or a paid subscription.
Reduce file size. Split a heavy file into parts with a target size that suits your upload limits.
Visual Page Selection. Visual page selection and thumbnail preview.
Extract Pages. Extract single pages or custom page ranges
Keep files private. The split happens in your browser, so your document is not uploaded to a server.
Is It Safe to Split a PDF Online?
Yes, Your PDF is loaded and split on your own device, and the file is not sent to a server.
FlexTools makes online PDF splitting simple and accessible directly in your browser.
Your files are processed locally and never leave your browser, helping protect the privacy of your documents.
There is no need to upload your PDF to a server to use the tool.
Use this free PDF splitter to extract PDF pages online, separate documents, and manage large files more conveniently. Choose your preferred splitting method to break PDFs into separate pages or smaller, more manageable documents.
Supported Formats and Limits
What the tool accepts, what it does not, and what you get at the end.
Input format
PDF files (.pdf)
Maximum file size
Up to 50 MB per PDF
Password-protected PDFs
Not supported. The tool shows an error and does not split the file.
Split modes
Split by Range (fixed or custom), Split by Pages, Split by Size
Page preview
Thumbnails of every page, with a preview-all option
Download
Download each file, or all files at once
Cost
Free
Frequently Asked Questions
How do I split a PDF into separate pages?
Upload your PDF, choose Split by Range, and set Pages per PDF to 1. Each page is saved as its own PDF, and you can download them one by one or all together.
Is the Split PDF tool free?
Yes. The tool is free to use, and you can split your PDF files without paying for software.
Are my PDFs uploaded to a server?
No. Your PDF is read and split locally in your browser, so the file never leaves your device.
What is the largest PDF I can split?
You can split a PDF up to 50 MB in size. If your file is larger, try reducing it before you upload it.
Can I split a password-protected PDF?
No. Password-protected PDFs cannot be split with this tool. Remove the password with your own copy of the file first, then upload the unprotected version.
Can I extract only certain pages from a PDF?
Yes. Use Split by Pages to click the thumbnails of the pages you want, or use Split by Range with Custom Ranges to enter a From and To page for each section you need.
What is the difference between Fixed Chunks and Custom Ranges?
Fixed Chunks divides the document into equal groups of pages, such as every 5 pages. Custom Ranges lets you choose the exact start and end page for each part, so the sections can be different lengths.
Can I split a PDF into files of a set size?
Yes. Choose Split by Size, enter a target size in MB or KB, and the tool divides the PDF into parts close to that size. It also shows an estimate of how many files you will get.
What if my ranges overlap?
The tool flags overlapping ranges, as well as a start page below 1, an end page past the last page, and a From page that comes after the To page. Review and correct the highlighted ranges before you split the file, so the output matches what you expect.
Can I download all of the split files at once?
Yes. After the split finishes, use the Download All button to save every output file, or download a single file from the list.
Do I need Adobe Acrobat to use this tool?
No. The tool runs in your web browser, so you do not need Adobe Acrobat or any other PDF software to split your file.
Does it work on phones and tablets?
Yes. The tool runs in any modern web browser, so you can split PDF files on a phone or tablet as well as on a desktop or laptop.