casparser 1.0.1

(CAMS/KFintech/NSDL/CDSL) Consolidated Account Statement (CAS) PDF parser

CASParser

Parse Consolidated Account Statement (CAS) PDF files generated from CAMS, KFintech, NSDL, and CDSL.

casparser also includes a command line tool with the following analysis tools

• summary- print portfolio summary
• (BETA) gains - Print capital gains report (summary and detailed)
  • with option to generate csv files for ITR in schedule 112A format

Supported inputs

casparser parses original CAS PDFs delivered by the four recognised issuers:

Issuer	Variant(s)	Source
CAMS	Detailed, Summary	mailback.camsonline.com request
KFintech	Detailed, Summary	mfs.kfintech.com request
NSDL	Demat consolidated	NSDL CAS email (monthly)
CDSL	Demat consolidated	CDSL CAS email (monthly)

Known unsupported inputs

• Re-printed PDFs. If you "print to PDF" an existing CAS (Microsoft Print to PDF, "Save as PDF" via a browser print dialog, macOS print preview → save, etc.) the watermark gets flattened from selectable text into a bitmap and the original generator metadata is wiped. The visual appearance is identical but casparser can no longer prove what it's looking at, and will reject the file. Re-request the statement from the issuer directly and parse the original.
• MF Central statements. MF Central's CAS uses a different template / generator and is not in scope for v1.0.
• Third-party-reformatted statements (broker portals that re-render CAS data, Excel/CSV exports converted back to PDF, etc.) — same reason as re-prints.

If you need to support one of these flows for downstream tooling, the recommended path is to keep the original issuer-delivered PDF alongside any redistributed copy and feed the original to casparser.

Installation

pip install -U casparser

Since v1.0 the parser is built on pypdfium2 (Apache-2.0 / BSD-3) — no optional PDF backends, no GPL/AGPL dependencies.

Usage

import casparser
data = casparser.read_cas_pdf("/path/to/cas/file.pdf", "password")

# Get data in json format
json_str = casparser.read_cas_pdf("/path/to/cas/file.pdf", "password", output="json")

# Get transactions data in csv string format
csv_str = casparser.read_cas_pdf("/path/to/cas/file.pdf", "password", output="csv")

Data structure

{
    "statement_period": {
        "from": "YYYY-MMM-DD",
        "to": "YYYY-MMM-DD"
    },
    "file_type": "CAMS/KFINTECH/NSDL/CDSL/UNKNOWN",
    "cas_type": "DETAILED/SUMMARY",
    "investor_info": {
        "email": "string",
        "name": "string",
        "mobile": "string",
        "address": "string"
    },
    "folios": [
        {
            "folio": "string",
            "amc": "string",
            "PAN": "string",
            "KYC": "OK/NOT OK",
            "PANKYC": "OK/NOT OK",
            "schemes": [
                {
                    "scheme": "string",
                    "isin": "string",
                    "amfi": "string",
                    "advisor": "string",
                    "rta_code": "string",
                    "rta": "string",
                    "type": "string",
                    "nominees": [
                      "string",
                    ],
                    "open": "number",
                    "close": "number",
                    "close_calculated": "number",
                    "valuation": {
                      "date": "date",
                      "nav": "number",
                      "value": "number",
                      "cost": "number",
                    },
                    "transactions": [
                        {
                            "date": "YYYY-MM-DD",
                            "description": "string",
                            "amount": "number",
                            "units": "number",
                            "nav": "number",
                            "balance": "number",
                            "type": "string",
                            "dividend_rate": "number"
                        }
                    ]
                }
            ]
        }
    ]
}

Notes:

• Transaction type can be any value from the following
  • PURCHASE
  • PURCHASE_SIP
  • REDEMPTION
  • SWITCH_IN
  • SWITCH_IN_MERGER
  • SWITCH_OUT
  • SWITCH_OUT_MERGER
  • DIVIDEND_PAYOUT
  • DIVIDEND_REINVESTMENT
  • SEGREGATION
  • STAMP_DUTY_TAX
  • TDS_TAX
  • STT_TAX
  • MISC
• dividend_rate is applicable only for DIVIDEND_PAYOUT and DIVIDEND_REINVESTMENT transactions.
• NSDL and CDSL statements return a different top-level shape with accounts[].equities[] and accounts[].mutual_funds[] instead of folios[].schemes[]. See casparser.types.NSDLCASData for details.

CLI

casparser also comes with a command-line interface that prints summary of parsed portfolio in a wide variety of formats.

Usage: casparser [-o output_file.json|output_file.csv] [-p password] [-s] [-a] CAS_PDF_FILE

  -o, --output FILE               Output file path. Saves the parsed data as json or csv
                                  depending on the file extension. For other extensions, the
                                  summary output is saved. [See note below]

  -s, --summary                   Print Summary of transactions parsed.
  -p PASSWORD                     CAS password
  -a, --include-all               Include schemes with zero valuation in the
                                  summary output
  -g, --gains                     Generate Capital Gains Report (BETA)
  --gains-112a ask|FY2020-21      Generate Capital Gains Report - 112A format for
                                  a given financial year - Use 'ask' for a prompt
                                  from available options (BETA)

  --version                       Show the version and exit.
  -h, --help                      Show this message and exit.

CLI examples

# Print portfolio summary
casparser /path/to/cas.pdf -p password

# Print portfolio and capital gains summary
casparser /path/to/cas.pdf -p password -g

# Save parsed data as a json file
casparser /path/to/cas.pdf -p password -o pdf_parsed.json

# Save parsed data as a csv file
casparser /path/to/cas.pdf -p password -o pdf_parsed.csv

# Save capital gains transactions in csv files (pdf_parsed-gains-summary.csv and
# pdf_parsed-gains-detailed.csv)
casparser /path/to/cas.pdf -p password -g -o pdf_parsed.csv

Note: casparser cli supports two special output file formats [-o file.json / file.csv]

1. json - complete parsed data is exported in json format (including investor info)
2. csv - Summary info is exported in csv format if the input file is a summary statement or if a summary flag (-s/--summary) is passed as argument to the CLI. Otherwise, full transaction history is included in the export. If -g flag is present, two additional files '{basename}-gains-summary.csv', '{basename}-gains-detailed.csv' are created with the capital-gains data.
3. any other extension - The summary table is saved in the file.

Demo

ISIN & AMFI code support

Since v0.4.3, casparser includes support for identifying ISIN and AMFI code for the parsed schemes via the helper module casparser-isin. If the parser fails to assign ISIN or AMFI codes to a scheme, try updating the local ISIN database by

casparser-isin --update

If it still fails, please raise an issue at casparser-isin with the failing scheme name(s).

License

CASParser is distributed under the MIT license. Up to v0.8 the optional mupdf / fast extra pulled in PyMuPDF / MuPDF, which would have caused GNU GPL v3 and GNU Affero GPL v3 to apply transitively. v1.0 dropped that extra (the PyMuPDF and pdfminer.six backends are gone; the parser now runs on pypdfium2, which is dual Apache-2.0 / BSD-3), so casparser is now pure MIT end-to-end.

Resources

1. CAS from CAMS
2. CAS from Karvy/Kfintech
3. NSDL Consolidated Account Statement
4. CDSL Consolidated Account Statement