Your pictures become the ink of giant letters
The collage starts from a word, not a template image. Type LOVE or FAMILY, or enter one to six custom letters, and the engine draws the word in a heavy sans-serif face on a small offscreen canvas, automatically shrinking the type until every letter fits the width and cap height. That hidden canvas is then sampled cell by cell on a square grid; wherever the pixel alpha says the letter is solid, a mosaic tile belongs to the word, and the empty page around it stays the background color you chose. The mask is pure geometry generated in your browser, so the same word looks identical at preview size and at print size, with no jagged edge from resizing a picture.
Add between two and eight of your own photos using the file picker. Each picture is read through a local object URL — the standard browser mechanism for pointing at a file on the device — and it is decoded, cover-cropped and drawn straight into the tiles it belongs to. There is no upload code anywhere on this page, no account and no server, so private family photos never leave the room. Photos are handed out in continuous horizontal bands, and each tile shows its true region of the full cover-scaled image, which is why a band reads as one recognizable photograph cut into squares. A density switch selects coarse, medium or fine tiles, and the little gutter between tiles lets the background show through as grout. With fewer than two photos, the poster demonstrates itself: every tile becomes a saturated gradient swatch, so you can design the word first and drop the real pictures in afterward.
Print-ready export at 300 DPI
The on-screen canvas is only a 1200-pixel live preview. Download rebuilds the mask and every tile from scratch at 300 dots per inch in the exact print size you select, from square A4 to 24×36 inches, while keeping the tile physical size constant, so the mosaic prints crisp and the photographs retain their full resolution. The result is a single flat PNG with no watermark and no embedded tracking — a gallery print, a guest-book board or a gift made entirely from pictures and a word that are yours.
让你的照片成为大字的墨水
拼贴从一个词开始，而不是从一张模板图开始。输入 LOVE、FAMILY，或一到六个自定义字母，引擎会先在一个小小的离屏画布上用粗重的无衬线体写出这个词，并自动逐级缩小字号，直到每个字母都同时满足宽度与字高。接着在正方形网格上逐格采样这张隐藏画布：只要像素透明度判定该处在字形之内，这块马赛克格就属于文字，字形之外的空白页面则保留你选择的背景色。遮罩完全由浏览器里的几何运算生成，因此同一个词在预览尺寸与印刷尺寸下完全一致，不会出现放大图片带来的毛边。
用文件选择器添加二至八张你自己的照片即可。每张图片都通过本地对象地址读取——这是浏览器指向本机文件的标准机制——随后被解码、等比 cover 裁切，并直接绘制进它所属的格子。本页没有任何上传代码、没有账号、没有服务器，私人的家庭照片因此从不离开这个房间。照片按连续的水平条带依次分配，每一格显示的都是整张 cover 图中对应的真实区域，所以一条横带看起来就像同一张完整照片被切成小方块。格数密度可选粗、中、细三档，格子之间留的细缝会让背景色像勾缝一样透出来。照片少于两张时，海报会自我演示：每一格都变成一块高饱和渐变色块，你可以先设计好文字，再把真实照片放进来。
300 DPI 的印刷级导出
屏幕上的画布只是 1200 像素的实时预览。下载时会按你选择的确切印刷尺寸——从方形 A4 到 24×36 英寸——以每英寸 300 点从零重建遮罩与每一个格子，同时保持小方块的物理尺寸恒定，因此马赛克印出来锐利，照片也保留全部分辨率。成品是一张扁平的 PNG，没有水印、没有内嵌追踪，可以做成画廊挂画、签到板，或一份完全由属于你的图片与文字组成的礼物。
Are my photos uploaded anywhere?
No. Files are referenced only by local object URLs created with URL.createObjectURL; they remain in your browser memory and are released when removed or the page closes. The tool has no network upload capability at all.
我的照片会被上传到哪里吗？
不会。文件只通过 URL.createObjectURL 生成的本地对象地址被引用，始终留在你的浏览器内存里，移除或关闭页面时即释放。本工具完全不具备网络上传能力。
Can I use any word, including Chinese characters?
The word field accepts one to six capital letters and uses them as the mosaic mask — try LOVE, FAMILY, HOME or initials. For Chinese typographic layouts and vertical CJK type, our Quote Poster tool is the better match.
可以用任何词吗，包括汉字？
词语框接受一到六个大写字母，并以其作为马赛克遮罩——可以试试 LOVE、FAMILY、HOME 或名字缩写。如果你需要中文排版或汉字竖排，我们的引言海报工具更合适。
What prints without adding any photos?
A demo mosaic in which every tile is a generated gradient color block, so the word is fully visible and you can test words and densities. Add at least two pictures to replace the demo with your own cover-cropped photographs.
不加照片时打印出来会是什么？
会是一张演示马赛克：每一格都是程序生成的渐变色块，文字完整可见，方便你先试词与密度。添加至少两张照片后，演示就会替换为你自己等比裁切的照片。
