PDF Splitter – Split PDF by Range, Pages or Size | CrimsonPDF
CrimsonPDF › Document Tools › PDF Splitter
✂️ Document Tool · Free

PDF Splitter

“Isolate it. Extract it. Own it.”

Extract any page range, split into fixed intervals, or pull individual pages — instantly, in your browser, with zero uploads.

100% Browser-Based
No File Uploads
Multiple Split Modes
✂️
PDF Splitter
Upload a PDF then choose your split mode below
1
Upload Your PDF
📂
Drop your PDF here
or click to browse your device
Supported: .pdf files only
📄
—
—
2
Choose Split Mode
📐
By Range
Custom page ranges
📄
Fixed Pages
Split every N pages
🔍
Extract
Pick specific pages
Merge all ranges into one PDF
Combine extracted ranges into a single output file
Preview: Upload a PDF to see how many output files will be created.
Keep original order
Maintain page sequence within each split chunk
Separate individual pages with commas. Use a dash for ranges (e.g. 3-7). Pages are counted from 1.
Each page as separate PDF
Download each extracted page as its own file
3
Split & Download
✓
Split complete!
Your PDF has been split and is ready to download
0
Output files
0
Pages extracted
0s
Processing time
👁 Page Map
📄
Upload a PDF to see your pages visualised here
⚙️ How it works
1
Upload your PDF
Drag and drop or click to select a PDF from your device. No file size limits.
2
Choose a split mode
By Range for custom extractions, Fixed Pages for even splits, or Extract for specific pages.
3
Configure your split
Add page ranges, set interval, or type page numbers. The Page Map shows your selection live.
4
Download your files
Single output downloads directly as PDF. Multiple outputs bundle as ZIP.
💡 Pro tips
✅Use By Range to extract a chapter or section from a large document.
✅Use Fixed Pages to break a big report into equal-sized chunks for sharing.
✅Enable Merge all ranges to combine non-contiguous pages into one file.
✅Use Extract with “Each page as separate PDF” to isolate every page individually.
⚠️Password-protected PDFs must be unlocked before splitting.
❓ Frequently asked
No. All splitting is done client-side in your browser using PDF-lib. Your file never leaves your device.
Three modes: By Range (custom from/to page sets), Fixed Pages (split every N pages), and Extract (pick individual pages or ranges by number).
Yes. Toggle “Merge all ranges into one PDF” to combine all your selected ranges into a single output file.
No enforced limit. Larger PDFs may take a few seconds depending on your device’s processing speed.
A single output downloads directly as a PDF. Two or more outputs are bundled into a ZIP archive for one-click download.
Explore More Document Tools
Keep your PDF workflow moving
📄
Word to PDF
Convert .docx instantly
 🔗
PDF Merger
Combine multiple PDFs
 🗜️
PDF Compressor
Reduce file size
 🖼️
Image to PDF
JPG & PNG → PDF
 📚
Citation Generator
APA, MLA, Chicago
 📋
Resume Builder
Professional CVs
⚡ Why CrimsonPDF

Precision splitting. Zero compromise.

Three powerful split modes, a live page map, and full privacy — all without leaving your browser.

🔒
Zero data transmission
Your PDF never leaves your device. All splitting happens client-side via PDF-lib.
📐
Three split modes
Custom ranges, fixed page intervals, or individual page extraction — all in one tool.
🗺
Live page map
See your page selections highlighted visually as you configure ranges or type page numbers.
📦
Smart download logic
One output = direct PDF. Multiple outputs = auto-bundled ZIP. No unneeded archive steps.
🔀
Merge option
Combine non-contiguous page selections into a single merged PDF output file.
📱
Works on any device
Fully responsive — use on desktop, tablet, or mobile without any app or installation.

How to Split a PDF Online for Free

Splitting a PDF used to require desktop software like Adobe Acrobat. CrimsonPDF’s PDF Splitter runs entirely in your browser — no download, no account, no cost. Upload your file, define your page ranges or intervals, and download discrete PDF files in seconds.

Three Split Modes Explained

  • By Range: Define one or more custom from/to page ranges. Each range becomes a separate PDF. Enable the merge toggle to combine all ranges into one file.
  • Fixed Pages: Split your PDF into equal chunks automatically. Set it to every 5 pages and a 20-page PDF produces 4 equal output files.
  • Extract: Type specific page numbers or ranges (e.g. 1, 3, 5-8). Download each as individual PDFs or merge them into one.

Why Split a PDF?

  • Share chapters: Extract a single chapter from a textbook or report without sharing the full document.
  • Email size limits: Large PDFs often exceed email attachment limits — split them into smaller files that pass through.
  • Isolate evidence: Extract specific pages from a contract, legal brief, or academic paper for annotation or reference.
  • Batch printing: Split a document into sections for printing on different printers or in different formats.

Is My PDF Safe?

Yes. CrimsonPDF uses PDF-lib, a browser-native JavaScript library, to process your file entirely on your device. No file is transmitted to any server, stored in any cloud, or retained after you close the tab. This makes it safe for confidential documents, legal files, medical records, and academic submissions.

Scroll to Top