Law firms live on documents, and most of those documents are PDFs. Court filings, contracts, discovery materials, correspondence, client agreements, legal research โ nearly all of it arrives, circulates, and gets filed as PDF. Getting the PDF workflow right directly affects billable efficiency, compliance, and the quality of client service.
Court Filing Requirements
Court filings have specific technical requirements that vary by jurisdiction and court system. Federal courts in the US use CM/ECF, which mandates text-searchable PDFs, specific file size limits (usually 35MB per document), and font and margin requirements. State courts vary significantly โ some accept any PDF, others require specific formats. Always check the court's standing orders and local rules before filing electronically.
The most common filing mistake is submitting a scanned PDF without OCR. Courts increasingly require text-searchable documents so clerks and judges can search and reference specific text. Run every scanned document through OCR PDF before filing. After OCR, test that the text is selectable before submission.
Redaction Before Production and Filing
Proper redaction is one of the most critical โ and most mishandled โ PDF tasks in legal practice. Courts have sanctioned attorneys for producing documents with faulty redactions that allowed opposing counsel to read supposedly protected information. A black highlight or text box placed over content in a PDF editor is not a real redaction โ it's cosmetic. The underlying text remains in the file and can be copied.
True redaction permanently removes the content from the file. After applying redaction, verify it: select the redacted area and attempt to copy โ if nothing pastes, the redaction is genuine. For high-stakes productions, have a second person test each redaction before the document goes out. The time cost of verification is minimal compared to the consequences of a failed redaction.
Contract Review and Markup
PDF annotation tools make contract review efficient: highlight provisions for discussion, add sticky note comments with analysis, use strikethrough to mark clauses for deletion, and use text annotations to propose replacement language. A well-annotated PDF gives the supervising attorney clear context for each suggested change without a separate memo.
For contracts that will be substantively negotiated and redlined, working in Word with Track Changes is more appropriate than PDF markup โ the other party's lawyers need to accept or reject changes, and that process works better in an editable format. Convert to PDF only when the document is ready for final signature. During active negotiation, keep it in Word.
Bates Numbering for Discovery
Bates numbering โ sequential page identifiers applied to every page of a document production โ is a standard requirement in litigation. Each page gets a unique identifier (e.g., ABC00001, ABC00002) that allows precise reference to specific documents during depositions, motions, and trial.
Adobe Acrobat Pro has a built-in Bates numbering tool under Tools โ Edit PDF โ Header & Footer โ Add Bates Numbering. Dedicated legal document management software like Relativity, Summation, and iManage also handle Bates numbering as part of their production workflows. For small productions handled without dedicated litigation software, Acrobat's tool is sufficient.
Client Document Security
Law firm PDFs containing client confidential information require appropriate security measures. PDF Security features โ open passwords for documents sent externally, edit restrictions on finalized agreements, and print restrictions on sensitive documents where physical copies shouldn't be made โ add layers of protection. Transmitting client documents by email should use encrypted email or a secure portal rather than unencrypted attachments for anything sensitive.
Client file retention follows professional responsibility rules that vary by jurisdiction โ typically 5-7 years minimum after the matter closes. PDFs stored in a document management system with consistent naming and metadata satisfy retention requirements while keeping client files searchable and accessible for the required period.