Making your own door posters is a fun way to decorate your room with the images you want at a fraction of the cost of buying posters. Enter the dimensions of the poster you want into special poster and mural software, and it will divide your image into overlapping sections you can print on standard 8.5-inch by 11-inch paper using a quality colour inkjet or laser printer. When the parts are taped together or pasted to poster board or foam core, you will have a seamless-looking finished poster.
- Skill level:
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Things you need
- Measuring tape
- High resolution image
- Graphics software
- Image editing software
- Special effects and stylising software
- Poster/mural software
- Quality colour inkjet or laser printer
- Photo printing paper
- Protective cardboard
- Craft knife
- Straight edge with ruler markings
- Paper trimmer
- Poster board or foam core
- Low tack tape
- Transparent tape
- Positionable mounting adhesive
- Spray fixative
Measure the door and determine the size poster you want to make. The software will adapt your image to any size, but you may want to consider using a poster board or foam core backing and selecting a poster size that is close to those dimensions so you don’t have to trim it.
Select a crisp, high quality, high resolution photograph or illustration, or use your favourite graphics software to create one. Avoid images with too much fine detail, with muted colours, or with low contrast, because they will not hold up well when enlarged or may look “washed out.”
Use image editing software to crop the image to match the proportions of the measurements for the poster so the image will enlarge properly. Adjust contrast, saturation, and colour balance if necessary.
Experiment with free or inexpensive special effects software, such as Be Funky (befunky.com) to manipulate images into posterizations, painting and drawing simulations, pop art, and similar stylised options. These may produce more pleasing and dramatic results than just enlarging a photo. Many programs of this type are free and available online, so you don’t have to download to your computer.
Download and install one of the many free or inexpensive poster generation software programs such as Posteriza (posteriza.com) or Pro Poster (ronyasoft.com), or pick one of their online equivalents such as Block Posters (blockposters.com). Enter the dimensions of your desired poster into the program.
Upload your edited image and preview it. Make any final cropping or other adjustments required.
Select the option to print the image to the size of the poster. The software will calculate how many sheets of 8.5- by 11-inch paper you will need for the completed poster.
Insert the photo paper into an inkjet or laser printer. Check your ink supply. Print the pages to make the poster image.
If you are going to use a craft knife to trim your printed sheets, place a piece of protective cardboard on the work surface.
Trim the overlap from all the printed sheets using either a craft knife and straight edge or a paper trimmer. Trim carefully so the edges of the enlarged image will butt up perfectly to each other.
Piece the printed sheets together working from the image side and using small pieces of low tack tape to hold them to each other in place. Assemble the complete poster.
Flip the poster over and tape all the backsides of the seams completely with transparent tape. Flip the poster over again and carefully remove all the low tack tape from the front surfaces.
As an alternative to taping the pieces together, use a positionable mounting adhesive and a backing surface such as poster board or foam core. Apply the adhesive to each section, and position in place on the backing surface.
Tips and warnings
- Spray several thin coats of a fixative with UV protection to protect from light damage and seal water-based inkjet inks.
- Large output graphics is an increasingly competitive business, and you may find using outside vendors cheaper than buying photo paper and ink and producing posters yourself.
- Positionable mounting adhesives come in many forms, including sheets, brush on liquids, and spray on products, and are readily available at arts and crafts stores.
- Note that some free poster software adds a small watermark or identification to posters generated. If this bothers you, licensed products eliminate this and cost around £13 to £19, as of 2010.
- Always have adequate ventilation when using solvent-based or aerosol products.
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