The Freelancer's PDF Toolkit: Proposals, Invoices, and Contracts

As a freelancer, you are also your own admin department — and a surprising amount of that admin is documents. Proposals to win work, contracts to define it, invoices to get paid for it. A small set of PDF tools handles the whole cycle and makes you look polished doing it.
Proposals that look the part
Your proposal is often a client's first real impression of your professionalism. Write it in your editor, then export with Word to PDF so the layout is pristine on any device, and add a watermark with your logo for a branded finish.
Contracts, signed fast
Convert your agreement to PDF, sign it digitally, and send it for the client's signature — no printing, no delay between "yes" and a signed contract. Protect it with a password if it contains sensitive terms.
Invoices that get paid
Build invoices in a spreadsheet and export with Excel to PDF so the figures are fixed and professional. A clean PDF invoice is taken more seriously — and is harder to "accidentally" misread.
Deliverables and records
Merge multi-part deliverables into one tidy file, compress anything large before sending, and OCR your receipts so your records are searchable when tax time arrives.
Why this matters for a one-person business
Clients judge freelancers partly on the small professional signals. Documents that are clean, fixed, and correctly formatted say "this person has it together" — before you have spoken a word.