PosterunoYOUR PHOTO. A GIANT POSTER.
ONE IMAGE. A BIGGER PRINT.
Print your image across multiple A4 or Letter sheets. Choose the poster size, download the PDF, then print, trim and assemble at home.
Images stay in your browser
Print a large image on A4 or Letter paper with your home printer. This eight-step guide uses a four-sheet layout (2 × 2) with 5 mm overlap.
Check paper size, ink and paper feed before starting. Start with plain paper; use a cutting mat with a knife.
Yes. Choose a paper size supported by your printer in the editor and match it in the PDF print dialog. Export again if you change paper size; do not scale an A4 PDF onto Letter.
Check sheet positions, orientation and print scale. Keep the repeated image in the overlap, trim one adjoining white border and align matching details before taping. Do not align only the outer paper edges.
Turn off Fit to page and other automatic scaling; choose Actual size or 100%. Measure the 100 mm test line first. If it is wrong, check both your PDF reader and printer driver settings.
Margins leave room for the printer’s unprintable edges. Overlap repeats image details on adjoining sheets to help alignment. With 0 mm overlap, trim both adjoining white borders and butt the image edges together.
Use a higher-resolution original or reduce the final poster size. Quality estimates and adjustments cannot recover real detail missing from the source. Print a test sheet first.
Select its PDF page number in your PDF reader and use the original print settings. A1 and A2 are assembly positions; they may not match PDF page numbers when an instruction page is included.
Choose an image, check the dimensions and sheet preview, then download your printable PDF.
Open the poster editorStart with your own photo or artwork, or try the sample.
Choose paper and finished size, then preview each sheet.
Print at 100%, align the pages and tape from the back.
Wall art, birthday decorations, classroom displays and photo gifts.
Illustrative scenes
Paper sizes, print quality and how your images are handled.
Upload your image, choose the paper and poster size, then preview and download a multi-page PDF. This is a digital file with the image split across printable sheets: print it with your own printer, then trim, align and join the pages. We do not ship physical posters. Open the poster editor to get started.
Yes. Choose a 2 × 2 layout to split your picture across 4 sheets, or set more rows and columns or a finished size. The actual poster size depends on paper, orientation, margins and overlap; check the editor preview. The PDF can include an extra assembly guide page.
Choose A4, Letter, A3 or Legal. You do not need a large-format printer: a home inkjet or laser printer that supports your chosen paper is enough. Match the paper size in the editor, printer tray and PDF print dialog. Print at actual size (100%) and turn off “Fit to page”. See the print settings guide.
You can use JPG, PNG, WebP, AVIF, BMP and HEIC/HEIF, including many iPhone photos. HEIC files are converted in your browser before editing. Use a still image up to 20 MB; if your file cannot be read, export it as JPG or PNG and try again.
Enlarging an image can make blur more visible, especially up close. Use the highest-resolution original you have. Check the estimated print quality in the editor, reduce the poster size if needed and print one test sheet first.
The current version lets you create and download poster PDFs for free, without signing up or logging in. Sign in to manage projects saved in this browser; signing in does not enable cloud sync. You need your own printer, paper and ink.
Local images are processed in your browser and are not uploaded to a Posteruno image server. Saved projects stay in this browser on this device; signing in does not sync them to the cloud. Clearing browser data can remove them, so keep your originals and downloaded PDFs. Importing a URL requests the file from its source, which may receive normal connection information.
