Electronic Documents and E-Document Flow

Documents, rules and templates

A document is a record that holds facts, such as a letter, bill, certificate or application. Good documents follow rules so that anyone can read and trust them.

• A clear title that says what it is.
• A number and date to identify it.
• The body in short, correct sentences.
• The name and signature of the person responsible, and a stamp where needed.

A template is a ready model with the fixed parts already in place. You only fill the blanks. This saves time and keeps all documents the same shape. In a word processor you can save a template and use styles for headings, fonts and margins.

An electronic document (e-document) is a document kept as a file. E-document flow is how it is created, checked, signed, sent and stored without moving paper.

Office equipment and software

• Scanner: turns paper into an image file.
• Printer: turns a file into paper.
• Computer and phone: create and edit files.
• Word processor: letters and reports. Spreadsheet: tables and sums. Presentation program: slides.
• PDF reader: a PDF keeps the same look on every device.
• Cloud storage and email: share and work together on one file.

Choose the file type for the job: editable (DOCX) while writing, PDF when you finish and want it to stay unchanged.

Electronic signature and keys

An electronic signature shows who agrees to a document. A strong kind, the digital signature, uses a pair of keys made by maths:

• The private key is secret and stays with the owner. It signs the file.
• The public key is shared with everyone. It checks the signature.

When you sign, the computer first makes a short fingerprint (a hash) of the file and then locks that fingerprint with your private key. The receiver unlocks it with your public key and makes a fresh fingerprint of the received file. If both match, the file is unchanged and it came from you. If even one letter changed, the fingerprints differ and the check fails.

Many countries give legal value to qualified e-signatures. In India the IT Act, 2000 recognises them. Keep the private key and its password safe, because anyone who has it can sign as you.

OCR: from picture to text

OCR (optical character recognition) is software that reads a picture of printed or written text and gives back real text that you can edit, copy and search.

1. Scan or photograph the page (straight, bright, sharp).
2. The software finds lines and letter shapes.
3. It matches each shape with a letter.
4. You get text. Check it: similar shapes such as O and 0, l and 1 can be confused.

OCR helps with old records, forms and invoices. Clear print works best; handwriting and blurry photos give more errors.

Storing and protecting e-documents

• Backup 3-2-1: 3 copies, 2 kinds of storage (for example a laptop and a cloud drive), 1 copy away from home.
• Good names and folders: date and subject in the file name, e.g. 2026-10-fees-receipt.pdf.
• Passwords and access rights: only the right people can open, comment or edit.
• Encryption: scrambles a private file so that a thief cannot read it.
• Versions: keep older versions so you can go back after a mistake.
• Safe habits: update software, use antivirus, do not open unknown attachments, and delete copies you no longer need.

Try it

Use the free play in the 3D above to test a signature, then check your own backups with 3-2-1.

Key formulas and definitions

• E-document = a document kept as a file
• Private key signs, public key checks
• Signature check: hash(received file) equals the signed hash, so the file is unchanged
• Backup rule 3-2-1: 3 copies, 2 kinds of storage, 1 off-site
• OCR: picture of text → recognised letters → editable text (then proofread)

Worked examples

Common mistakes

• Saving a letter as a photo and thinking the text can be copied. Use OCR first.
• Sharing the private key. Only the public key is shared.
• Trusting OCR without reading it.
• Keeping all copies in one place, such as only one laptop.