PDF Splitter
Split a PDF into multiple separate files visually — every page renders as a thumbnail, and clicking between any two marks a cut there, with the resulting groups labeled Part 1, Part 2, and so on as you go. An auto-split shortcut places evenly-spaced cuts every N pages, which you can still fine-tune by hand. An Advanced mode falls back to typed page ranges (including non-contiguous groupings) for the rare case the visual view can't express. A single output downloads as a PDF; multiple outputs are bundled into a .zip. Pages are copied at the object level, not re-rendered. Runs entirely client-side using pdf-lib and pdf.js — nothing is uploaded.
About this tool
This tool splits a PDF into multiple separate files — visually, by default. Every page renders as a thumbnail in a row; click the gap between any two pages to mark a cut there, and the pages on either side are labeled Part 1, Part 2, and so on as you add more, so you can see exactly how many files you'll get and what's in each before splitting anything. An "auto-split every N pages" shortcut places evenly-spaced cuts for you, which you can still adjust by hand afterward. For less common cases — like pulling non-contiguous pages (1, 3, and 5) into a single output file — an Advanced mode falls back to typing page ranges directly. Pages are copied at the object level, the same as this site's PDF Merger, so nothing is re-rendered or recompressed. It runs entirely client-side using pdf-lib and pdf.js — nothing you upload is ever sent anywhere.
What you can do
- See every page as a thumbnail and click between any two to mark a cut — no syntax to learn
- Auto-place cuts every N pages, then fine-tune any of them by hand
- Or type custom page ranges directly, including non-contiguous groupings, in Advanced mode
- One output downloads directly; multiple outputs are zipped together
- Nothing is uploaded — splitting happens locally in your browser
How to use
Step 1
Upload a PDF
Every page renders as a thumbnail immediately.
Step 2
Click to mark cuts
Click between any two pages to split there — each resulting group is labeled Part 1, Part 2, and so on as you go.
Step 3
Download the result
A single output downloads as a PDF; multiple outputs are bundled into a .zip.
Example
A 5-page PDF with cuts placed after page 2 and after page 4:
Cuts
after page 2, after page 4
Output
file-part-1.pdf (pages 1-2) file-part-2.pdf (pages 3-4) file-part-3.pdf (page 5)
produces three files, zipped together since there's more than one output.
How your data is handled
This tool is labeled 🟢 Browser: your PDF is split directly in your browser using the pdf-lib library — nothing is uploaded to a server, and nothing about it is retained once you leave the page.
Frequently asked questions
How do I mark where to split?+
Hover between any two page thumbnails and click the + that appears — it turns into a scissors mark. Click it again to remove that cut. Pages between cuts are grouped into "Part 1", "Part 2", and so on, exactly matching the files you'll get.
What does "auto-split every N pages" do?+
It places evenly-spaced cuts for you — e.g. every 3 pages — which you can then adjust by hand: remove one to merge two parts back together, or add more to split further.
Can I still pull non-contiguous pages (like 1, 3, and 5) into one file?+
That's not something the visual view can express — click Advanced mode and type page ranges directly, e.g. 1,3,5;2,4 as two groups separated by a semicolon, with commas and dashes inside each group.
How do I download the result?+
If splitting produces exactly one file, it downloads directly as a .pdf. If it produces more than one, they're bundled into a single .zip so you don't get multiple separate downloads.
Does splitting reduce quality?+
No — pages are copied at the PDF object level, not re-rendered. Text, fonts, and embedded images are preserved exactly as they were in the source file.
Is my PDF uploaded anywhere?+
No — it's split directly in your browser using the pdf-lib library. Nothing here ever leaves your device.