AUTO MAGAZINE PUBLISHING- CONTENT MANAGMENT SOFTWARE

I AM PUBLISHING A FREE AUTOMOBILE MAGAZINE SUCH AS AUTO TRADER. I HAVE BEING TRYING TO ADD THE CONTENT MANUALLY USING OPEN OFFICE DRAW, BUT I NEED SOMEONE TO DESIGN A SOFTWARE FOR ME THAT WILL MAKE IT EASIER FOR ME TO ADD CONTENT OF EACH PAGE OF THE MAGAZINE. I NEED THE PAGES TO BE DIVIDED INTO 30 BOXES- 6 BY 5, EACH BOX CONTAIN THE CAR PICTURE AND A DESCRIPTION. I MAY NEED TO MERGE TWO OR MORE BOXES FOR A BIGGER ADVERTISEMENT. PLEASE SEE ATTACHED DOCUMENT OF THE WAY I USE TO DO IT MANUALLY. I NEED A SOFTWARE THAT WILL MAKE MY WORK EASIER AND FASTER, I WILL JUST UPLOAD THE PICTURE AND THE SOFTWARE WILL PLACE IT IN THE BOX AND I ADD CONTENT. PLEASE ASK QUESTIONS AND ALL IDEAS WELCOMED.