Split PDF
Split a PDF into multiple files
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Select PDF files from your device
Splitting a PDF is essential when you have a large document and only need to share or work with a portion of it. This comes up constantly in professional contexts: an HR manager extracting one employee's section from a combined benefits booklet, a lawyer pulling specific exhibits from a case file, a teacher sharing only the relevant chapter from a full textbook PDF, or an editor isolating specific pages for review. LazyPDF's Split PDF tool gives you two flexible methods: split every single page into its own file for maximum granularity, or define custom page ranges to create exactly the sections you need. For example, entering '1-5, 6-10, 11' would produce three separate PDFs from an 11-page document. The tool runs entirely in your browser using pdf-lib — your document never touches a server, which matters enormously for confidential legal, medical, or financial documents. The output files download immediately and preserve all the formatting, fonts, images, and embedded elements from the original. There are no watermarks added, no registration required, and no limitations on the number of pages or the size of the input file. For teams that regularly distribute sections of large documents to different stakeholders, this tool eliminates the need for desktop PDF software entirely.
How It Works
Split PDF separates a single PDF document into multiple smaller files based on your chosen method. You can split every page into its own file or define custom page ranges. All processing runs locally in your browser using pdf-lib, so your document never leaves your device.
Key Features
Split Every Page
Automatically extract each page as a separate PDF file with a single click.
Custom Ranges
Define specific page ranges like 1-3, 4-6, 7 to create exactly the splits you need.
Instant Download
Download individual split files or get all of them at once in a convenient batch.
100% Private
Your PDF is processed entirely in the browser. No data is sent to any server at any point.
Frequently Asked Questions
How do I split specific pages from a PDF?
Use the custom ranges option and enter the page numbers or ranges you want. For example, entering '1-3, 5, 8-10' creates three separate files containing pages 1 through 3, page 5 alone, and pages 8 through 10.
Can I split a password-protected PDF?
You need to remove the password first using the Unlock PDF tool. Once the PDF is unlocked, you can split it normally. Password-protected documents cannot be read by the browser without the correct password.
Does splitting affect the quality of the PDF?
No. Splitting simply extracts existing pages into new files without any re-encoding or compression. All text, images, fonts, and formatting remain exactly as they were in the original document.
Can I split a PDF into equal sections automatically?
The tool does not have an automatic equal-division mode, but you can achieve this by entering ranges manually. For a 30-page document split into thirds, enter '1-10, 11-20, 21-30' in the custom ranges field and get three 10-page PDFs instantly.
What happens to the original file after splitting?
The original file is never modified. Splitting reads the source PDF and creates new output files. Your original PDF remains exactly as it was on your device throughout the entire process.
Can I extract just one page from a large PDF?
Yes. Enter the single page number in the custom ranges field — for example '7' — and you will receive a new single-page PDF containing only that page. This is a fast way to extract a specific invoice, certificate, or form page from a larger document.
Do the split files maintain the same file size proportionally?
Approximately yes, but not exactly. Each split file inherits the embedded resources (fonts, color profiles) that were referenced on its pages. A 1-page split from a 10-page document may be slightly larger than one-tenth of the original because some shared resources are duplicated across output files.