📂 Click or Drag & Drop PDF File
✅ Your PDF is split!
⬇ Download All Files (ZIP) The ZIP file should download automatically. If it did not, click the green button above, or use the ⬇ buttons for single files. Your file was processed on your own device and was never uploaded.How to Split a PDF by Size or Every N Pages
Large PDF files are hard to email or upload, and long documents are easier to share in smaller parts. This tool cuts your PDF in the way you choose, and keeps the pages in order.
- Upload your PDF by clicking or dragging it into the upload area
- Choose "By file size" and pick the largest size, such as 2 MB, 10 MB or 25 MB
- Or choose "Every N pages" and type how many pages each file should have
- Or choose "Into equal parts" and type how many files you want
- Read the short note under the choices, which tells you what will happen
- Click "Split PDF & Download". A ZIP file with all the parts downloads automatically
Everything happens inside your browser, so your document is never uploaded.
Why Use This Split PDF Tool?
Email, job portals, government sites and school systems often accept files only up to a certain size. With "By file size", the tool measures the real files it makes, so every file stays under your limit instead of just guessing.
Unlike many online tools, your PDF stays on your own device. Nothing is sent to a server, and there is no sign-up.
Features of Split PDF by Size Tool
- Split by maximum file size, with ready choices from 1 MB to 25 MB or your own size in KB or MB
- Split every N pages
- Split into equal parts
- Real measuring, so each file stays under the limit
- List of all files with their page ranges and sizes
- Download everything in one ZIP, or any single file
- Files are named with part number and pages, for example report_part02_pages6-10.pdf
- Your PDF information (title, author) is kept in each file
- Warning if one page is bigger than your limit on its own
- No upload and no sign-up
- Free to use
Frequently Asked Questions
Is my document uploaded to a server?
No. Your PDF is processed inside your browser and never leaves your device.
How does "By file size" work?
The tool adds pages to a file one after another and checks the real size. When the next page would go over your limit, it starts a new file. All files stay under the limit.
One page is bigger than my limit. What happens?
A single page cannot be cut, so that page becomes a file on its own and is marked with a warning. You can use the Compress PDF tool on it.
Why are the files together bigger than the original?
Fonts and pictures used on many pages are saved again inside each file, so that every file works by itself.
Can I choose exactly which pages go in each file?
Yes, use our Split PDF tool or the Extract Pages tool for that.
Are the pages in the same order?
Yes. The files follow the original order, and the file names have the part number and the page range.
Do bookmarks and form fields stay?
The pages, text, images and links stay. Bookmarks (the outline panel) and fillable form fields may not be kept in the new files.
Can I split a password protected PDF?
No. Remove the password first, then split it. You can protect the parts again afterwards.
Is it free?
Yes, this tool is completely free to use.
About This Split PDF by Size Tool
This tool is made for students, job seekers and office workers who often need to send large PDF files within a size limit. It is simple enough for anyone, and fast enough for everyday use.
Because the splitting is done by your own browser, your documents stay private.