California eFiling File Size Limits (By Court and Case Type)
This article explains maximum file size limits for electronic court filings in California, organized by Superior Court and, where applicable, court division.
File size limits are set by the courts and enforced by their electronic filing systems (EFMs). If a filing exceeds a court’s limit, it will be rejected.
How to Read File Size Limits
Courts enforce two separate limits:
Document Limit
The maximum file size allowed for a single uploaded document (for example, one PDF).
Transaction Limit (Envelope Limit)
The maximum combined file size of all documents submitted together in a single eFiling transaction (also called an envelope).
Both limits apply.
If either the document limit or the transaction limit is exceeded, the filing will fail.
California Superior Court File Size Limits
Alameda County Superior Court
Document limit: 25 MB
Transaction limit: 60 MB
Butte County Superior Court
Document limit: 80 MB
Transaction limit: 80 MB
Fresno County Superior Court
Document limit: 100 MB
Transaction limit: 100 MB
Imperial County Superior Court
Document limit: 25 MB
Transaction limit: 60 MB
Los Angeles Superior Court (Limits Vary by Division)
Los Angeles — Civil
Document limit: 120 MB
Transaction limit: 120 MB
Los Angeles — Family & Probate
Document limit: 25 MB
Transaction limit: 35 MB
Los Angeles limits vary by case type, so it is critical to confirm whether your case is Civil or Family/Probate.
Orange County Superior Court (Limits Vary by Division)
Orange County — Civil
Document limit: 35 MB
Transaction limit: 60 MB
Orange County — Family
Document limit: 100 MB
Transaction limit: 100 MB
Riverside County Superior Court
Document limit: 120 MB
Transaction limit: No limit
Riverside County allows very large filing envelopes, but no single document may exceed 120 MB.
San Bernardino County Superior Court
Document limit: 25 MB
Transaction limit: 50 MB
San Francisco Superior Court
Document limit: 35 MB
Transaction limit: 60 MB
San Mateo County Superior Court
Document limit: 100 MB
Transaction limit: 100 MB
Sonoma County Superior Court
Document limit: 50 MB
Transaction limit: 50 MB
Default Rule for California Courts Not Listed Above
If a California Superior Court or court division is not specifically listed in this article, the following default California eFiling limits apply:
Document limit: 25 MB per document
Transaction limit: 35 MB per filing envelope
This default applies to most California eFiling courts, including (but not limited to):
Tuolumne County Superior Court
Modoc County Superior Court
Glenn County Superior Court
Kings County Superior Court
Unless a court has explicitly published a different limit, you should assume these default limits apply.
Common Questions and Clarifications
What happens if my document is too large?
The court will reject the filing. To proceed, you must:
Compress the PDF, or
Split the filing into multiple documents (where permitted by court rules).
Can I upload multiple documents to stay under the transaction limit?
Yes, as long as:
Each individual document is under the document limit, and
The total combined size of all documents stays under the transaction limit.
Do exhibits and attachments count toward file size limits?
Yes. All documents in the envelope count, including:
Exhibits
Attachments
Proposed orders
Proofs of service
Do scanned PDFs have different limits?
No. File size limits apply regardless of document type.
However, scanned PDFs are often significantly larger and may require compression.
Are these limits set by One Legal?
No. File size limits are set by the courts and their electronic filing systems. One Legal enforces these limits to prevent rejected filings.
Best Practices to Avoid File Size Rejections
Compress PDFs before uploading
Avoid unnecessary high-resolution scanning
Split large filings when permitted
Confirm limits in advance for courts with division-specific rules (such as Los Angeles and Orange County)
Quick Reference Summary
Always check two limits: document size and transaction size
Limits vary by court and sometimes by division
Default for most California courts:
25 MB per document
35 MB per transaction
If you are unsure whether your filing meets a court’s file size limits, One Legal’s system will flag issues before submission—helping you correct them before the filing is sent to the court.