- Calibrate horizontal and vertical print dimensions independently for each printer, helping posters and tiled artwork come out at the intended physical size. - An adaptive, ruler-marked calibration sheet makes setup straightforward, while previews, printing, and exports consistently reflect the selected printer's correction.

- Large tiled layouts now use much less memory, so high-resolution posters can be previewed, printed, and exported more reliably.

- Fixed an issue that could cut off settings on the left side of the app. - Drag the divider to resize the settings panel. Your preferred width is remembered for new windows and the next time you open the app.

- Choose additional paper formats supported by your printer. Actual paper dimensions help distinguish formats with the same name. - Find unsupported presets and Custom under More. All remain selectable. - Fixed landscape printing for custom paper sizes. - Get a warning before printing when paper size or orientation differs from your layout, or when content or crop marks may extend beyond the printable area. Return to adjust your settings or choose to print anyway. - Improved the assembled preview so internal margins no longer obscure the image when using margins and overlap together.

- Export your tiled layout directly as a print-ready PDF without opening the system print dialog. Vector content in PDF sources is preserved. - Export every page as PNG, JPEG, or TIFF images with consistent paper size, margins, overlap, crop marks, transforms, and page order. - The export window remembers your most recent format, resolution, JPEG quality, and destination folder. - See a warning when automatic margins are zero for custom paper sizes, helping you spot possible edge clipping before printing.

- Select a target printer while setting up your layout, see its current status, or choose No Printer to prepare a layout without one. - Paper Size now disables formats that the selected printer does not support. Auto Margin follows the printer's safe area, keeps the last known values when the printer is unavailable, and uses them as the starting point for Custom Margin. - Multi-page assembly is easier with 5 mm overlap by default. If overlap is turned off, a one-click recommendation can enable printer-safe margins, overlap, and crop marks. - The Output summary now groups paper size, margins, overlap, printable area, and tile step more clearly, with helpful explanations for each measurement. - Restore Previous Size only stays available after an automatic fit. It disappears as soon as you manually change the size or layout, so it cannot undo newer adjustments. - Zoom both Assembled and Pages previews with a mouse wheel or trackpad gesture, centered on the pointer with consistent direction and limits.

- Open PDFs and supported images directly from Finder with Open With, or use the File menu to open a document in the current tab or a new native macOS tab. - Navigate both Assembled and Pages previews with mouse dragging and trackpad zoom, then double-click to recenter. Pages preview now displays every row correctly on first view. - Choose System, Light, or Dark appearance. Changes apply consistently across open windows and are remembered for future sessions. - Custom Fit by page count now strictly preserves the image aspect ratio and keeps width and height page counts linked. Improved edge-page guidance identifies mostly empty pages and can fit the image to a smaller grid, with more reliable one-page fitting.

- Fixed Print Size previews that could show a stale or incorrect multi-page grid after editing dimensions. The preview and page count now update promptly to match the final physical size. - Reduced memory use while editing Print Size and Custom Paper dimensions. Preview rendering is now bounded, and oversized canvases are blocked before allocation.

- PDF pages now stay vector while tiled, preserving exact dimensions and keeping text and linework sharp at any zoom level. - Custom Fit now lets you choose whether to set the number of Pages or the final Print Size, bringing both sizing workflows together. - The expanded Paper summary shows paper size, margins, overlap, printable area, and effective tile step, with explanations for each measurement. - When content fits the paper but exceeds the printer's printable area, PrintTiler now explains why extra pages are required and offers Fit on One Page and Restore Previous Size actions.

- Added Poster Size mode for setting the exact final image dimensions while preserving the original aspect ratio. - Improved the Output summary with separate image and assembled sizes, plus a cleaner single-line layout. - Improved custom paper handling so its width and height determine the page orientation consistently in the app and macOS print panel. - Fixed a slowdown when opening Custom paper size in inches, and improved unit conversion when switching between millimeters and inches.

- Fixed PDF imports that could appear cropped, offset, or smaller than expected when pages used rotation or custom crop boundaries. - Fixed an issue that could reduce print sharpness for bitmap images when using Custom Fit with Keep Aspect Ratio enabled.

- Added Auto margins based on your printer's printable area, with a warning when selected margins may cause edge clipping. - Custom margins can now be set independently for the top, right, bottom, and left edges. Previews and Output reflect each edge accurately. - Margin presets now show per-edge controls for faster adjustment, and the selected filename appears in the window or tab title.

- Added adjustable page margins and optional crop marks for safer printing and easier trimming. - Added Assembled and Pages previews that show margins, overlap areas, crop marks, and page layout before printing. - Overlap distance can now be entered manually, and Output shows the final print size and page grid at a glance. - Fixed an issue where switching from Fit Width back to No Scale could print images much smaller than intended. Print Quality now defaults to Original.

- Refreshed the printing workspace with clearer sections and a more focused layout. - Added at-a-glance print quality and output details before printing. - Improved file selection and empty-state guidance for a smoother start.

Improved print size accuracy so printed output better matches the intended dimensions.

Updated the in-app feedback service to keep feedback submissions working reliably.

- Fixed tiled print page order to follow top-to-bottom, left-to-right reading order.

- Fit Width / Fit Height / Custom Fit now lock resolution to the estimated value for consistent sizing.

- Restored the standard system print panel so “Save as PDF” works as expected. - Added a clear DPI hint to explain how resolution changes output size.

- Scroll the left settings panel when the window is short. - Get a clear warning if the print dialog paper size doesn’t match your choice, so you can fix it before printing.

- Fixed an issue where printed pages appeared blank when using the Overlap feature - Fixed Overlap preview display not showing correctly in Custom Fit mode - Improved coordinate system handling for more accurate page slicing

- Added in-app feedback: let us know how your print turned out directly from the app - Send suggestions or report issues via Help → Send Feedback

- New: PDF support - open PDFs, select pages, and slice/print at the chosen DPI - Fixed: Letter page size now uses the correct 8.5×11 inch dimensions

- New: Overlap setting for trimming - adds repeated content at page edges (Off/3mm/5mm/10mm) to ensure seamless assembly after cutting - Improved PDF output quality with sharper page rendering - Selecting a new image now resets all options to defaults - Simplified print settings for better compatibility with all printers

- Fixed print dialog not showing correct paper size settings - Fixed image clipping issue in Custom Fit mode with aspect ratio lock enabled