Split PDF files online free

Large PDFs are awkward in email, painful on mobile, and sometimes rejected by upload forms with tight limits. Splitting is how you keep the same source material but present it in pieces that match the way people actually work: smaller review packets, chapter-sized handouts, or a single exhibit pulled out of a hundred-page scan.

The challenge is precision. A splitter should tell you exactly how many outputs you will get, highlight invalid ranges before you commit, and preserve page order so the fragments still make sense downstream. This interface centers on that preview-first mindset—especially useful for proposals, legal bundles, coursework, and customer success teams forwarding excerpts rather than entire libraries.

Like the merge tool on this site, splitting runs locally in your browser via pdf-lib. The bytes you drop into the page are not uploaded to UseBoldTools for the split itself, which keeps typical business and personal workflows straightforward. Expect encrypted or damaged PDFs to fail gracefully; when that happens, re-export from the authoring app or remove passwords and try again.

Need the opposite task? Combine fragments with PDF merge. Browse sibling utilities on the PDF tools category page.

In practice you will move through the guided steps in the tool card above: upload, pick a mode (ranges, selected pages, or every N pages), review the plan, run Split PDF, then download each file—or use Download All when multiple parts are ready.

• No login is required for public PDF splitting.
• No watermark is applied to split outputs.
• Client-side processing: pdf-lib performs the split in your tab; files are not sent to our servers for that operation.
• Downloads: outputs use temporary object URLs in the browser—clear your session on shared machines once you finish downloading.