Dear Mr./Ms./Mrs. {Recipient's Name},
I am very interested in the position of Graphic Designer at your esteemed organization. I came across the position via your advertisement in {Portal Name}.
Currently, I am working with {Company’s Name}, and I have been handling a wide range of high profile projects. I have been working on Adobe Creative Suite for the last 4 years. Please find below a link to my portfolio.{Insert link}
I am confident that my skills perfectly match your requirements. I have attached my detailed profile to this email for your consideration.
Thank you for considering my application. I hope you find it suitable so that we can arrange a meeting.
Looking forward to hearing from you.