Understanding MCA Portal PDF Size Limits (V2 vs. V3)
The Ministry of Corporate Affairs (MCA) enforces strict file size ceilings across its e-filing ecosystem. On the legacy MCA V2 portal, attachments to e-forms are capped at a strict 2 MB per attachment. On the modernized MCA V3 portal, webforms such as SPICe+ Part B, DIR-3 KYC, AOC-4 (Financial Statements), and MGT-7 (Annual Return) permit attachments up to 6 MB in specific slots. Exceeding these limits triggers immediate validation errors such as "Attachment size exceeds maximum allowed limit" or "Error while uploading document".
Critical Note: The DSC Digital Signature Order
One of the most frequent mistakes made by Company Secretaries, Chartered Accountants, and corporate filing professionals is attempting to compress a PDF after signing it with a Digital Signature Certificate (DSC). Cryptographic digital signatures lock the byte structure of the document. Any post-signing compression or modification irrevocably breaks the digital signature, resulting in the dreaded "Invalid Digital Signature" error during MCA form pre-scrutiny. Always compress your PDF first, verify that its size is comfortably below 2 MB or 6 MB, and only then affix your DSC token via Adobe Acrobat or the MCA signature utility.
Preserving Balance Sheets, Audit Notes, and Dense Financial Tables
Financial statements and statutory audit reports frequently contain multi-column balance sheets, small font notes to accounts, and scanned signature blocks. When generic tools compress these files, thin borders and decimal places often become illegible. DocImageHub uses Ghostscript's specialized print-grade resampling algorithms: embedded scanned images are recompressed to roughly 200–300 DPI, while native vector text, fonts, and gridlines remain 100% untouched. This guarantees that your balance sheet figures remain crystal clear to ROC reviewing officers.
What to Do If Your MCA Document Is Still Over 2 MB
- Scan in Grayscale or Black & White: Scanning physical signed audit reports in 24-bit full color produces files 5× to 10× larger than necessary. Re-scan in 150–200 DPI grayscale.
- Separate Bulky Annexures: Use our Split PDF tool to separate lengthy director disclosures or secretarial audit reports into distinct MCA attachment slots where permitted.
- Delete Redundant Blank Pages: Scanners often insert trailing blank pages that bloat file size. Remove them cleanly with our Delete PDF Pages tool.
Confidentiality & Corporate Data Security
Corporate filings contain sensitive financial metrics, board resolutions, and personal director identification numbers (DIN). DocImageHub processes all files over end-to-end encrypted TLS 1.3 connections. Files are held exclusively in temporary scratch memory and permanently purged within 60 minutes. We never index, inspect, share, or back up your uploaded corporate records.