Home / PDF Tools / Split PDF by File Size
PDF Tools

Split PDF by File Size

Choose a target maximum size and let the browser test page groups until it creates practical PDF parts without uploading the document.

Source pages
Source size
Output parts
Largest part
Choose a PDFThe browser tests real generated PDF parts against your target. A single source page can still exceed the limit, so an exact maximum cannot always be guaranteed.

Connected browser-local PDF workflow

v10.84 connects page organization, merge/split, rotation/deletion/extraction, conversion, compression, annotation, forms, metadata, page sizing, N-up/booklet/poster printing, comparison, and repeated header/footer work without replacing the established historical PDF engines.

PDF processing boundaries

These tools operate within browser memory and the capabilities of pdf-lib/pdf.js and the existing local engines. Encrypted, malformed, scanned, XFA, unusual forms, complex signatures, OCR-dependent documents, and advanced desktop-editor features can require specialist software. Always verify generated files before discarding the source.

How to use the Split PDF by File Size

Choose a target KB or MB ceiling. The browser repeatedly builds real page-group PDFs and starts a new part when adding another page would exceed the target.

What the result means

Choose a target maximum size and let the browser test page groups until it creates practical PDF parts without uploading the document.

Practical limits

A single PDF page may itself exceed the requested maximum, so no browser tool can guarantee that every part stays below the target without recompressing or rasterizing that page. This tool reports that case explicitly.

Search by task, tool name, or category. Press Esc to close.
Start typing to find a tool.