New Tools

Overlay a visible text watermark on a PDF and customize its text, position, opacity, angle, font size, color, and page range.

Permanently rotate all PDF pages or selected pages by 90°, 180°, or 270° to fix sideways or upside-down scans.

Add a searchable, selectable text layer to scanned PDFs. Supports Simplified and Traditional Chinese, English, and Japanese, with automatic deskewing and page rotation.

Compress PDF files online with three quality levels—smallest size, balanced, and high quality. Reduce the size of scans, reports, and attachments in batches.

Generate subtraction chains with three or more integers and missing-number exercises. Customize the number range, layout, and print or export your worksheets.

Create elementary number decomposition worksheets with custom number ranges and question counts, ready to export as PDF or print.

Customize the number range and question count to generate multi-digit addition and missing-addend worksheets, with A4/A5 layouts and PDF export.

Create fill-in-the-blank make-a-ten worksheets for subtraction within 20. Customize the number of problems, paper size, and answer display, then export to PDF or Word for printing.

Create step-by-step subtract-to-ten worksheets for first-grade subtraction within 20. Customize the layout and paper size, then export files locally.

Create customizable make-a-ten addition worksheets for early elementary students, with flexible question counts and layouts.

Create standard Cornell note paper with multiple page sizes, custom line spacing, and print-ready exports.

Create printable A4, A5, B5, or Letter dot grid paper with custom spacing, colors, headers, and page numbers. Export to PDF for printing.

Customize line spacing, paper size, and headings, then export a high-resolution printable lined paper template.

Create elementary math worksheets for length, weight, time, and area conversions. Customize the difficulty and layout, then export and print.

Create printable elementary math worksheets with missing-number problems using arithmetic, geometric, and alternating sequences. Customize the difficulty and layout, then export your worksheet.

Generate printable integer and decimal comparison worksheets with customizable ranges, precision, multi-column layouts, and answer keys.

See the IP address this device presents to ToolKK, including its version, address scope, and browser network status.

Use your phone camera to enlarge details in real time, with zoom, rear flashlight, and front camera mirror mode.

Reads your phone’s magnetometer and shows magnetic field changes in µT, helping you find nearby magnetic objects and sources of interference.

Use the native App’s two-axis sensor display and bubble indicator to check approximate phone tilt.