Write
Build a short argument around the role, evidence, and employer rather than a generic introduction.
Plan, write, format, and tailor a cover letter that connects one job with selected evidence from your resume. Explore the PortCV generator, examples, templates, and writing guides without copying generic scripts.

Quick answer
A cover letter should not retell your entire resume. Use it to explain why this role makes sense, choose one or two pieces of evidence that matter to the employer, and add context the resume format does not have room to show. If a posting asks for a letter, tailor it to that vacancy; if the letter is optional, send one only when you can add something specific.
What matters most
Build a short argument around the role, evidence, and employer rather than a generic introduction.
Keep the document readable, consistent with the resume, and appropriate to the requested submission channel.
Use the exact resume version and job description so the two application documents do not contradict each other.
Inside PortCV
PortCV's resume workflow already contains the facts a strong letter needs: roles, projects, skills, achievements, target-job context, and professional identity. Pull selected evidence into the cover letter instead of asking AI to invent a separate career story.
Open the resume engineGuide 01
The resume is optimized for scanning and evidence. The cover letter gives you a small amount of narrative space to explain motivation, connect a transition, or unpack one relevant contribution. If a paragraph simply repeats a resume bullet without adding context, it is probably using the space poorly.
A useful cover letter for resume submission makes the two documents feel coordinated without making them duplicates.
Guide 02
An AI cover letter generator can help organize job context and resume evidence, but generic outputs are easy to spot because they rely on stock enthusiasm and broad praise. Give the tool a real job description and verified resume content, then edit the result until it sounds like you.
The same rule applies to an application letter generator: automation can accelerate structure, but company details, motivation, and professional claims need human verification.
Guide 03
Use the generator when you need a first draft, examples when you need to understand evidence patterns, templates when the writing is ready and presentation needs structure, and the format guide when you are unsure about order, spacing, or submission conventions.
Keeping those intents separate prevents one page from becoming a generic answer to every cover letter question.
Questions people ask
Send one when the employer requests it. When it is optional, use one if you can add role-specific context or evidence that improves the application rather than repeating the resume.
Yes. A stronger workflow uses verified resume evidence plus the job description, then asks you to review every claim and rewrite generic language.
They should feel related through name treatment, typography, and restrained visual cues, but they do not need identical layouts.
PortCV Resume Engine
Turn the guidance into a real resume in PortCV. Edit structured sections, refine wording with AI, check job alignment, switch layouts without rewriting your content, and export a polished PDF from one resume engine.