How CAs Merge & Compress ITR Documents for e-Filing (AY 2025-26)
Every AY, chartered accountants juggle Form 16, 26AS, AIS, bank statements, and investment proofs for each client. Here's the fastest way to merge them into a single PDF set and compress to meet the income tax portal's upload limits — without uploading anything.
The CA's Filing Season Problem
During AY 2025-26 filing (July-September 2025), a typical CA firm handles 200-500 ITR filings. Each client's document set includes 5-15 separate PDFs: Form 16 from employer(s), 26AS/AIS downloads from TRACES, bank statements (sometimes 3-4 accounts), investment proofs (80C, 80D, 80G), and capital gains statements from each broker/MF platform.
📋 Typical Document Count Per Client
Total: 10-21 PDFs per client × 300 clients = 3,000-6,000 files per season.
The traditional approach — renaming files, manually merging in Adobe, emailing to clients for signatures — is slow and error-prone. Cloud tools like iLovePDF mean uploading client PAN, Aadhaar, and income data to foreign servers. Under the DPDP Act 2023, this is a data protection risk.
Recommended Merge Order
Maintain a consistent order across all clients. Here's the standard CA firms use:
Form 16 (Part A & B)
From each employer; salary clients may have 2-3
26AS / AIS Statement
Downloaded from TRACES; shows TDS credits
TIS (Taxpayer Information Summary)
New from AY 2024-25; shows pre-filled data sources
Bank Statements (all accounts)
Full year April–March from each bank
Investment Proofs — 80C
PPF, ELSS, LIC, NPS statements
Insurance Proofs — 80D
Health insurance premium receipts
Capital Gains Statements
From Zerodha P&L, Groww, Kuvera, CAMS, KFintech
Other Deductions / Exemptions
Rent receipts, HRA calc, 80G donation receipts, 80E education loan
Step-by-Step Merge Guide
Step 1: Collect All PDFs in One Folder
Create a folder per client: AY2526_Sharma_Rahul_AXXPS1234X. Use the PAN as a folder identifier. This reduces misfiling risk.
Step 2: Open the Merge Tool
Go to Merge PDF. Drag-drop all files from the client's folder. Re-order them in the UI to match the standard merge order above.
Step 3: Check Page Count & Order
The tool shows page count per file. Verify totals make sense — a typical ITR document set is 30-80 pages. If it's 200+ pages, check for duplicate bank statements.
Step 4: Merge & Download
Click Merge. The combined PDF downloads instantly. Rename it:ITR_AY2526_Sharma_Rahul_COMPLETE.pdf
Compressing for the Income Tax Portal
The e-filing portal has strict upload limits. If your merged PDF exceeds them, compress before uploading.
| Upload Context | Max Size | Typical Merged Size |
|---|---|---|
| ITR Attachment | 5 MB | 8-25 MB (often exceeds) |
| CPC Response Upload | 5 MB | 3-10 MB |
| ITAT Appeal Filing | 10 MB per document | 15-50 MB (almost always exceeds) |
| GST Attachment | 5 MB per file | 2-8 MB |
Quick Compress Workflow
- Open Compress PDF
- Drop the merged client PDF
- Select compression level: Medium is usually enough for scanned bank statements; use High if it's still over 5 MB
- Download the compressed file — verify it's under the portal limit
💡 Pro Tip: Compress Before Merging
If individual bank statement PDFs are large (3+ MB each due to high-DPI scans), compress them before merging. This gives better results than compressing the merged file, because the engine can optimize each document's images independently.
Why Not Use Cloud Tools?
Tools like iLovePDF, SmallPDF, and Adobe Online require uploading client documents to their servers (located in EU/US). For a CA firm handling 300+ clients' PAN, Aadhaar, income details, and bank statements:
DPDP Act §8(3) — Data Minimisation
You must not process data beyond what is necessary. Uploading to a third-party server when local processing is available is exactly the kind of excess the law targets.
ICAI Ethical Standards
CA code of conduct requires protecting client confidentiality. Bulk-uploading financial data to foreign servers is arguably a breach.
Business Risk
If a cloud tool suffers a data breach and a client's ITR data leaks, the reputational damage to your firm is irreversible.
EverydayPDF processes everything in your browser. The files never leave your laptop. This is verifiable — disconnect WiFi and the tool still works.
Batch Processing for Filing Season
During peak season (July-September), Pro users can process unlimited files with no per-session limits. The typical workflow for a CA firm:
Ready for filing season? Start merging client documents now.
Merge, compress, and protect — all on your device. Zero upload, DPDP-compliant.