Split PDF by File Size
Split a PDF into smaller files using an approximate maximum size target.
This tool preserves normal PDF quality and structure for its core operation.
Choose files or drag them here
application/pdf · Up to 1 files · Max 25 MB per file
Options
Using Split by Size
Split a PDF into smaller files using an approximate maximum size target.
How to Use Split by Size (Step-by-Step)
Follow these quick steps to achieve optimal results in seconds.
Choose or Import Files
Upload or drag and drop your application/pdf file into the secure workspace.
Configure & Preview
Customize available settings, page ranges, or compression levels with real-time feedback.
Immediate Download
Execute processing and download your finalized output instantly without countdowns or watermarks.
Workflow
Set the maximum MB target, process the file and check the actual size of each result.
Example to try
Try a 10 MB target on a scanned report, then check each output before uploading elsewhere.
Illustrative check using non-sensitive sample input; not a claim of a measured production result.
Limitations and review
A large individual page may exceed the requested target; the limit is approximate rather than guaranteed.
Processing and privacy
Input files or text and selected options are sent to a server processing job. Review the upload limits and job expiry shown in the workspace. Expiry and scheduled physical cleanup are separate events.
Read our full privacy policy →Privacy Guaranteed
Isolated sandbox execution with automated 30-min file deletion.
No Quality Loss
Lossless vector preservation and crisp high-DPI rendering without watermarks.
Immediate Access
Instant downloads with zero registration, subscriptions, or forced waiting gates.
Technical Specifications & Input Settings
The file picker accepts application/pdf. Select 1 file(s). The current web uploader limits each file to 25 MiB; the service may reject additional unsupported inputs.
- Maximum MB
- Configure in the workspace when needed.
Questions about Split by Size
Frequently asked technical and operational questions about split by size.
How accurately does Split by Size meet the target megabyte limit?
The split engine groups sequential pages until their combined byte size approaches your chosen limit. Because individual high-resolution pages cannot be split across files, output sizes are approximate targets.
Will splitting by file size compress or downsample my images?
No. Page content streams, vector artwork, and embedded images remain unaltered. The tool only distributes existing page objects across separate PDF containers.
Where does Split by Size process my input?
Files are processed by an isolated server task that measures page object byte allocations, with temporary storage scheduled for removal within 30 minutes.