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About this tool
Split a PDF into separate files by page, in fixed batches, by custom page ranges, or by extracting or removing chosen pages.
Split PDF cuts one PDF into several smaller PDFs — one file per page, fixed batches of N pages, custom ranges such as 1-3, 5, 9-, or a single file with chosen pages extracted or removed. Page numbers are 1-based exactly as your reader shows them, and the split is done with pdf-lib inside the browser, so the document is never uploaded. It is for anyone who needs to hand over part of a document — a single invoice from a batch, one chapter from a report — without sharing the rest.
Open Split PDF on AltFTool — it loads instantly in your browser.
Upload or drag in the file you want to work with.
Adjust the settings and preview the result.
Download the finished file to your device.
Accepts 3, 2-7, 9- and last in one expression, so complex selections take a single line.
The PDF is read with the browser File API and rewritten locally — no server ever sees the file.
Every part can be pulled down individually or packaged into one ZIP, up to 500 output files.
Choose 'One PDF per page' and upload the file — a 12-page document becomes 12 single-page PDFs named document-page-01.pdf through document-page-12.pdf. Download them one by one or take the whole set as a ZIP.
Pick 'Extract selected pages into one PDF' and type the pages, for example 1-3, 5, 9- which keeps pages 1, 2, 3, 5 and everything from page 9 to the end. Pages are written in the order you list them, so 7-2 would also reverse that block.
No. The file is read with the browser's File API and rebuilt in memory with pdf-lib on your own machine, so the document never leaves the device and the tool keeps working if the connection drops after the page loads.
Only if the password has already been removed. An encrypted PDF cannot be parsed without its password, so unlock it first — the tool will report that it could not read the file rather than producing a broken split.