How do I split a PDF by file size for free?

Upload your PDF to A2ZDocs, enter the maximum file size per part (in MB), and click Split. Parts are downloaded as a ZIP file. No signup required.

When is splitting by size useful?

Splitting by size is perfect when you need to email a large PDF but face attachment size limits, or when uploading to systems with file size restrictions.

Is splitting PDF by size free?

Yes. Splitting PDFs by file size on A2ZDocs is completely free with no watermarks and no account required.

Skip to main content

AZ

A2ZDocs

Organize & Manage

Merge PDF Organize Pages Rotate PDF Custom Rotation Reverse Pages Add Blank Page Remove Blank Pages Combine to Single Divide Pages PDF Booklet Table of Contents Page Dimensions Posterize PDF PDF Multi Tool

Split & Extract

Split PDF Extract Pages Delete Pages Split in Half Split by Size Split by Text Split by Bookmarks Alternate & Mix Extract Images Extract Tables Extract Attachments Compare PDFs

Edit & Sign

PDF Editor E-Sign PDF Annotate PDF Redact PDF Watermark OCR PDF Fill PDF Form Add Image Stamp PDF Layers Add Attachment Header & Footer Page Numbers Bates Numbering Edit Bookmarks

Security

Protect PDF Unlock PDF Digital Sign Validate Signature Change Permissions Remove Restrictions Remove Metadata View Metadata Edit Metadata Sanitize PDF Flatten PDF Remove Annotations

Convert from PDF

PDF to Word PDF to JPG PDF to PNG PDF to WebP PDF to TIFF PDF to BMP PDF to SVG PDF to Excel PDF to PPT PDF to Text PDF to Markdown PDF to HTML PDF to CSV

Convert to PDF

Word to PDF Excel to PDF PPT to PDF JPG to PDF Image to PDF HTML to PDF Markdown to PDF Text to PDF CSV to PDF JSON to PDF EPUB to PDF ODT to PDF RTF to PDF XPS to PDF PSD to PDF CBZ to PDF Email to PDF

Optimize & Repair

Compress PDF Repair PDF Linearize PDF Rasterize PDF Fix Page Size PDF to PDF/A Font to Outline Deskew PDF

Color & Visual

Grayscale Invert Colors Scanner Effect Adjust Colors Change Background Change Text Color

AI & Utility

AI Summarize Chat with PDF Prepare for AI Word Count ZIP Files Unzip Files

Photo Edit

Passport Photo Change BG Color Blur Background Add Shadow Remove Object Upscale Image

Compress PDF Editor

Photo Edit Tools

Passport Photo Change BG Color Blur Background Add Shadow Remove Object Upscale Image

Get Started

Merge Split Compress Editor Rotate Organize Reverse Pages Add Blank Page Remove Blanks Combine Pages Divide Pages Booklet E-Sign Annotate Redact Protect Watermark OCR Permissions Remove Restrictions Remove Metadata Sanitize PDF to Word PDF to JPG PDF to WebP PDF to TIFF PDF to SVG PDF to Markdown Word to PDF Excel to PDF Text to PDF CSV to PDF JSON to PDF Image to PDF Invert Colors Scanner Effect Adjust Colors Change Background Change Text Color Rasterize Linearize Fix Page Size Extract Tables AI Summarize Chat with PDF Passport Photo Change BG Color Blur Background Add Shadow Remove Object Upscale Image Table of Contents Page Dimensions Posterize View Metadata Digital Sign Validate Signature Fill Form Add Stamp PDF Layers Add Attachment Extract Attachments PDF to BMP PDF to CSV EPUB to PDF ODT to PDF RTF to PDF XPS to PDF PSD to PDF CBZ to PDF Email to PDF PDF to PDF/A Font to Outline Prepare for AI PDF Multi Tool

Split PDF by File Size Free

Divide a PDF into multiple files, each under a specified file size limit.

Drop a PDF here or click to browse

Choose File

Maximum size per file (MB)

Splitting…

AZ

A2ZDocs

Free online PDF & photo tools for everyone. No signup required. Files deleted immediately after processing.

Limit reached — tools paused You've used all 10 operations. Please wait before running more tools.
Available again in: —