Introduction
Find and extract embedded files, attachments, and portfolio items from PDFs. This guide assumes you have a basic understanding of PDF files and builds on that knowledge with more detailed techniques and real-world scenarios. Whether you're using PDFly's free online tools or building your own workflow, this guide covers everything you need to know about how to extract attachments from a pdf.
Understanding Splitting
Splitting PDFs allows you to divide a large document into smaller, more manageable files. This is essential when you need to share specific pages, extract chapters, or reduce file size for email. PDF splitting gives you precise control over which pages go where, with options for page ranges, size limits, and bookmark-based division.
Key Concepts You Need to Know
- Splitting creates new PDF files from portions of an existing document
- Page range splitting lets you specify exact pages (e.g., pages 1-5, 8, 11-15)
- Size-based splitting divides PDFs to meet email or upload limits
- Bookmark-based splitting automatically creates files at chapter boundaries
- Extraction is a form of splitting that pulls specific pages into a new file
How to Extract Attachments from a PDF
Open the Split Tool
Navigate to PDFly's Split PDF tool and upload the PDF you want to divide.
Choose Split Method
Select how to split: by page ranges, every N pages, by file size, or by bookmarks.
Configure Options
Set specific page ranges, chunk sizes, or size limits depending on your chosen method.
Split and Download
Execute the split and download the resulting files as a ZIP archive or individual PDFs.
Tips & Best Practices
Name output files systematically (e.g., document_part01.pdf, document_part02.pdf)
Use bookmark-based splitting for documents with clear chapter structure
Check file size limits of your target platform before splitting by size
Always keep the original PDF until you've verified the split results
Consider splitting at logical breakpoints rather than arbitrary page counts
Common Mistakes to Avoid
- Splitting at wrong pages can break logical content sections
- Forgetting to name output files systematically causes confusion
- Splitting encrypted PDFs requires the password first
- Size-based splitting may cut content at awkward points
- Not verifying split results can lead to missing pages