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Lizely

Print Poster PDF

Turn every local PDF page into a 2×2, 3×3, or 4×4 set of same-size printable tiles without uploading the document.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Choose a non-empty PDF no larger than 25 MiB.
  2. 2.Select two to four poster columns and two to four poster rows.
  3. 3.Create the tiled PDF, print at 100 percent scale, and assemble sheets from top left to bottom right.

About Print Poster PDF

Print Poster PDF enlarges every source page across a grid of printable sheets. Choose a local PDF up to 25 MiB, select two to four columns and two to four rows, and create the poster document. A 2 by 2 grid produces four sheets for each source page; a 3 by 3 grid produces nine; and a 4 by 4 grid produces sixteen. All page embedding, placement, serialization, and download creation run inside the browser without uploading the file to Lizely.

Each output sheet keeps the width and height of its corresponding source page. The source artwork is scaled to the full assembled poster size: columns times the source width and rows times the source height. Every output page shows one window onto that enlarged artwork. Printing the sheets at 100 percent scale and arranging them in grid order reconstructs the enlarged page without relying on a printer driver's poster mode.

Tile order is deterministic. For each source page, sheets are emitted from the top-left tile across the first row, then the next row, ending at the bottom-right tile. A two-page input with a 2 by 3 grid creates six sheets for page 1 followed by six sheets for page 2. The result reports both the source page count and total sheet count, which equals source pages multiplied by columns and rows.

The tool embeds PDF page artwork rather than rasterizing it to screenshots. Vector shapes and text can remain vector-based to the extent supported by the existing PDF library. Each enlarged page is positioned behind the fixed output page boundary, so the page boundary clips it to the required tile. The source page order, page geometry, and selected grid are the only placement inputs.

There is no overlap, trim mark, bleed, margin, or registration-mark option. Most physical printers cannot print to the exact sheet edge, so their unprintable margins can leave narrow gaps after assembly. Users can trim edges manually or choose printer settings appropriate for their device, but the tool does not know the printer's hardware margins. Test one page before committing ink and paper to a large poster.

Mixed-size documents are supported by deriving each group of tiles from its own source page size. A landscape page therefore produces landscape sheets, while a portrait page produces portrait sheets. The tool does not normalize pages to Letter, A4, or another named paper standard and embeds no paper-size lookup table. If a specific physical sheet size is required, resize the PDF first with a dedicated tool.

Rotated pages retain the page artwork as embedded by the library, but PDF rotation and page-box conventions can affect how a viewer presents a tile. Crop boxes, media boxes, and non-zero coordinate origins can also make unusual documents behave differently from simple pages. Inspect the generated sheets in the intended PDF viewer before printing, especially when the source contains rotated, cropped, or prepress-oriented pages.

Empty files, non-PDF selections, files larger than 25 MiB, encrypted PDFs, damaged cross-reference data, and unsupported documents produce a visible error. Password protection is not bypassed. Changing the file or grid revokes the old download so it cannot be mistaken for the current arrangement. A job identifier prevents slower stale work from replacing a newer result.

This workflow creates a visual tiling document. Interactive links, comments, form widgets, scripts, attachments, bookmarks, and named destinations are not recreated as equivalent interactive structures on every tile. It does not add cutting instructions, compensate for printer scaling, reduce ink coverage, impose booklet signatures, or securely remove hidden content. Use it for local poster enlargement where the fixed grid and documented print assumptions are suitable.

Methodology & sources

Validate one bounded PDF and a grid from two to four in each direction, embed every source page once, derive tile placements from that page's width and height, scale artwork to columns times width and rows times height, emit fixed-size output sheets in top-left row-major order, rely on each sheet boundary as the clip, and serialize one new PDF.

Frequently asked questions

How many output sheets will I get?
Source pages are multiplied by the selected columns and rows; one page on a 3×3 grid produces nine sheets.
What size are the output sheets?
Each tile keeps the width and height of its source PDF page; the tool does not convert to a named paper standard.
Does the tool add overlap or trim marks?
No. Tiles meet at their page boundaries, so account for your printer's unprintable margins when assembling.
Is the PDF uploaded?
No. Embedding, enlargement, clipping, serialization, and download creation run locally in the browser.

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