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Quick read
Choose by capability, not by a blanket “best” claim.
Grand Print
People who want local image processing, broad image and single-page PDF input, detailed tile geometry, and PDF or JPG ZIP output.
The Rasterbator
People who specifically want the established Rasterbator.net halftone workflow.
Side by side
What the reviewed product pages actually document.
A missing documented feature is described as “not documented,” not as proof that the feature can never exist. Each cell links to its supporting page.
| Criterion | Grand Print · grandprint.app | The Rasterbator · rasterbator.net |
|---|---|---|
| Price and watermark | Free, with no account, watermark, paid tier, or feature unlock. Support is optional. Grand Print support policy | Its FAQ says payment is optional, does not change functionality, and Rasterbator.net is free. Rasterbator.net FAQ |
| Image processing location | Selected files, examples, previews, and output stay in the browser. Grand Print privacy model | Its FAQ says selected images and PDFs are generated in-browser. URL import is fetched through its server, and technical dimensions, output size, and parameters may be logged. Rasterbator.net privacy answer |
| Documented inputs | JPEG, PNG, WebP, TIFF, and HEIC/HEIF (iPhone/Samsung camera image) images, all decoded on the device by the bundled engine, so HEIC needs no conversion step and no browser HEIC support. PDF input is accepted as well: page 1 is rendered on the device at print resolution and later pages are ignored. Grand Print source-file help | JPG and PNG, documented up to 20 MB and 8192 px in either dimension. Rasterbator.net format answer |
| Crop, rotate, and editing | EXIF orientation, manual quarter-turn rotation, uncropped image placement, four split-origin corners, grid phase, and reversible sheet exclusion. Grand Print layout controls | The reviewed workflow documents source selection, paper and size, styles, color, margins, overlap, crop marks, and page positions; it does not document a crop or rotate editor. Rasterbator.net workflow |
| Resampling or upscaling language | Optional, cap-gated one-time 2× Lanczos resampling. It is described as resampling, not as recovering missing detail. Grand Print image-quality help | Offers halftone modes and plain enlargement. Its FAQ says sources above 8192 px are scaled down; no separate enhancement control is documented. Rasterbator.net format and style notes |
| Paper and layout controls | A5–A1, B4, Letter, Legal, Tabloid, and validated custom paper; margins, overlap, orientation, decimal sheet spans, physical target size, marks, labels, anchors, and tile exclusion. Grand Print layout controls | Paper size, custom printable area, margins, overlap, decimal sheets wide or high, crop marks, and page-position labels are documented. Rasterbator.net size and options workflow |
| Output formats | Raster multi-page PDF and coordinate-named JPG tiles in a ZIP. Grand Print export help | A multi-page PDF is documented. The reviewed .net workflow does not document a JPG ZIP export. Rasterbator.net download answer |
| Documented limits | Adaptive byte, pixel, dimension, page-count, storage, and device-tier limits are shown before selection; there is no universal file-size guarantee. Grand Print limits answer | JPG/PNG up to 20 MB; images above 8192 px wide or high are scaled down. Rasterbator.net documented limits |
Price and watermark
Free, with no account, watermark, paid tier, or feature unlock. Support is optional.
Grand Print support policyIts FAQ says payment is optional, does not change functionality, and Rasterbator.net is free.
Rasterbator.net FAQImage processing location
Selected files, examples, previews, and output stay in the browser.
Grand Print privacy modelIts FAQ says selected images and PDFs are generated in-browser. URL import is fetched through its server, and technical dimensions, output size, and parameters may be logged.
Rasterbator.net privacy answerDocumented inputs
JPEG, PNG, WebP, TIFF, and HEIC/HEIF (iPhone/Samsung camera image) images, all decoded on the device by the bundled engine, so HEIC needs no conversion step and no browser HEIC support. PDF input is accepted as well: page 1 is rendered on the device at print resolution and later pages are ignored.
Grand Print source-file helpJPG and PNG, documented up to 20 MB and 8192 px in either dimension.
Rasterbator.net format answerCrop, rotate, and editing
EXIF orientation, manual quarter-turn rotation, uncropped image placement, four split-origin corners, grid phase, and reversible sheet exclusion.
Grand Print layout controlsThe reviewed workflow documents source selection, paper and size, styles, color, margins, overlap, crop marks, and page positions; it does not document a crop or rotate editor.
Rasterbator.net workflowResampling or upscaling language
Optional, cap-gated one-time 2× Lanczos resampling. It is described as resampling, not as recovering missing detail.
Grand Print image-quality helpOffers halftone modes and plain enlargement. Its FAQ says sources above 8192 px are scaled down; no separate enhancement control is documented.
Rasterbator.net format and style notesPaper and layout controls
A5–A1, B4, Letter, Legal, Tabloid, and validated custom paper; margins, overlap, orientation, decimal sheet spans, physical target size, marks, labels, anchors, and tile exclusion.
Grand Print layout controlsPaper size, custom printable area, margins, overlap, decimal sheets wide or high, crop marks, and page-position labels are documented.
Rasterbator.net size and options workflowOutput formats
Raster multi-page PDF and coordinate-named JPG tiles in a ZIP.
Grand Print export helpA multi-page PDF is documented. The reviewed .net workflow does not document a JPG ZIP export.
Rasterbator.net download answerDocumented limits
Adaptive byte, pixel, dimension, page-count, storage, and device-tier limits are shown before selection; there is no universal file-size guarantee.
Grand Print limits answerJPG/PNG up to 20 MB; images above 8192 px wide or high are scaled down.
Rasterbator.net documented limitsReview register
Other independently checked poster tools.
Rasterbator, PrintTiler, Block Posters, and Docuslice are each kept as a separate, source-linked record.
Docuslice · docuslice.com
A multi-platform canvas editor for tiled images and documents, with free and paid feature tiers.
Review source for docuslice.comBlock Posters · blockposters.com
A server-upload poster workflow with free use and a $5 Premium option.
Review source for blockposters.comPrintTiler · printtiler.com
A local-processing photo tiler with a size-limited watermarked free tier.
Review source for printtiler.comSources used for the main comparison
Checked on . Prices, limits, and features may change after that date.
What this page does not claim
- It does not claim Grand Print is faster; no controlled cross-product benchmark supports that.
- It does not claim every competitor uploads images; several reviewed tools document local processing.
- It does not treat “private,” “free,” or “no watermark” as equivalent across separate domains.
- It does not copy another product's branding, wording, interface, code, or assets.