Multiple Conversion Formats
Convert audio files such as M4A, MP3, and WAV; video files such as MP4, WEBM, and MOV; and images such as JPG, PNG, and WEBP into formats suited to your needs.
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PDF & Documents
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Easy for BeginnersFile Selection Type
Merge PDFs
Merge multiple PDFs into one file in your preferred order.
PDF & DocumentsMerge
Easy for BeginnersFile Selection Type
Split PDF
Extract only the required page range into a new PDF.
PDF & DocumentsPage
Easy for BeginnersFile Selection Type
Compress PDF
Reduce PDF file size for easier sharing.
PDF & DocumentsCompress
Easy for BeginnersFile Selection Type
PDF to JPG
Convert PDF pages to JPG images.
PDF & DocumentsConvert Images
Easy for BeginnersFile Selection Type
JPG to PDF
Combine multiple photos into a PDF in their original order.
PDF & DocumentsConvert Images
Easy for BeginnersFile Selection Type
Rotate PDF Pages
Rotate incorrectly oriented PDF pages in 90-degree increments.
PDF & DocumentsPage
Easy for BeginnersFile Selection Type
Delete PDF Pages
Select and delete unwanted pages.
PDF & DocumentsPage
Easy for BeginnersFile Selection Type
Extract PDF Pages
Save only the required pages as a separate PDF.
PDF & DocumentsPage
Easy for BeginnersFile Selection Type
Set PDF Password
Set a password required to open the PDF.
PDF & DocumentsPasswords & Security
Easy for BeginnersFile Selection Type
Remove PDF Password
Remove protection from a PDF when you know its password.
PDF & DocumentsPasswords & Security
Easy for BeginnersFile Selection Type
Extract Text from PDF
Extract text from a PDF.
PDF & DocumentsExtract Text
Easy for BeginnersFile Selection Type
Convert PDF to DOCX
Extracts text from a PDF in page order and converts it into an editable DOCX document. Complex layouts are simplified.
PDF & DocumentsWord, Excel and PowerPoint
Easy for BeginnersFile Selection Type
Convert PDF to PPTX
Converts a PDF to PPTX by placing each page as an image slide to preserve its appearance.
PDF & DocumentsWord, Excel and PowerPoint
Easy for BeginnersFile Selection Type
Convert PDF to XLSX
Organizes text lines from each PDF page into Excel sheets. Table structures may be simplified depending on the source.
PDF & DocumentsWord, Excel and PowerPoint
Easy for BeginnersFile Selection Type
All-in-One Hangul and Office Document Converter
Convert HWP, HWPX, Word, Excel, and PowerPoint files to PDF, DOCX, XLSX, PPTX, or open document formats.
PDF & DocumentsConvert PDF
Easy for BeginnersFile Selection Type
HWP to PDF
Converts Korean Hangul HWP documents to PDF. Requires the LibreOffice HWP filter.
PDF & DocumentsHWP·HWPX
Easy for BeginnersFile Selection Type
Convert HWPX to PDF
Converts Hangul HWPX documents to PDF. Support depends on the installed document filters.
PDF & DocumentsHWP·HWPX
Easy for BeginnersFile Selection Type
Convert HWP to DOCX
Convert HWP documents to Word DOCX format.
PDF & DocumentsHWP·HWPX
Easy for BeginnersFile Selection Type
HWPX to DOCX
Convert HWPX documents to Word DOCX format.
PDF & DocumentsHWP·HWPX
Easy for BeginnersFile Selection Type
Convert Word to PDF
Convert DOC, DOCX, ODT, and RTF documents to PDF.
PDF & DocumentsDOC·DOCX·ODT
Easy for BeginnersFile Selection Type
Convert DOC to DOCX
Convert legacy DOC documents to DOCX format.
PDF & DocumentsDOC·DOCX·ODT
Easy for BeginnersFile Selection Type
Convert DOCX to ODT
Convert a Word DOCX document to the open document format ODT.
PDF & DocumentsDOC·DOCX·ODT
Easy for BeginnersFile Selection Type
Convert Document to TXT
Extracts text from HWP, DOC, DOCX, ODT, and RTF documents and converts it to TXT.
PDF & DocumentsExtract Text
Easy for BeginnersFile Selection Type
Excel to PDF
Convert XLS, XLSX, ODS, and CSV spreadsheets to PDF.
PDF & DocumentsConvert PDF
Easy for BeginnersFile Selection Type
Excel to CSV
Converts the first sheet of an XLS, XLSX, or ODS file to CSV.
PDF & DocumentsXLS·XLSX·CSV·ODS
Easy for BeginnersFile Selection Type
Convert CSV to XLSX
Convert CSV data into an Excel XLSX file.
PDF & DocumentsXLS·XLSX·CSV·ODS
Easy for BeginnersFile Selection Type
Convert XLS to XLSX
Convert legacy XLS files to XLSX format.
PDF & DocumentsXLS·XLSX·CSV·ODS
Easy for BeginnersFile Selection Type
Convert XLSX to ODS
Convert Excel XLSX files to the OpenDocument Spreadsheet (ODS) format.
PDF & DocumentsXLS·XLSX·CSV·ODS
Easy for BeginnersFile Selection Type
Convert PowerPoint to PDF
Convert PPT, PPTX, and ODP presentations to PDF.
PDF & DocumentsConvert PDF
Easy for BeginnersFile Selection Type
Convert PPT to PPTX
Convert legacy PPT presentations to PPTX.
PDF & DocumentsPPT·PPTX·ODP
Easy for BeginnersFile Selection Type
Convert PPTX to ODP
Convert PPTX presentations to the OpenDocument Presentation (ODP) format.
PDF & DocumentsPPT·PPTX·ODP
Easy for BeginnersFile Selection Type
Convert PPT Slides to Images
Converts PPT, PPTX, and ODP slides into a ZIP of PNG images, one per slide.
PDF & DocumentsSlide Image
Easy for BeginnersFile Selection Type
OCR Scanned PDF
Convert scanned PDFs into searchable PDFs with selectable and copyable text.
PDF & DocumentsOCR
Easy for BeginnersFile Selection Type
Permanently Redact Personal Information in PDF
Remove resident registration numbers, contact details, bank account numbers, or specified text from the original data.
PDF & DocumentsRemove Personal Information
Easy for BeginnersFile Selection Type
Compare Two PDF Files
Creates an HTML comparison table showing text changes between two PDFs.
PDF & DocumentsCompare
Easy for BeginnersFile Selection Type
Repair PDF
Rebuild the structure of a damaged or improperly saved PDF.
PDF & DocumentsRecover
Everything from file conversion to calculations and diagnostics in one place
REGOLITH is more than a collection of links. It provides functional web tools that take you from entering data and running tasks to reviewing and saving results. Original files remain unchanged, with results created separately. Each tool page explains supported formats, usage steps, and how to review results before you begin.
Getting Started Guide
Instructions for selecting files, configuring options, running tools, and saving results are available on a separate guide page and within each tool.
Detailed Task Descriptions
Provides format characteristics, recommended uses, guidelines for verifying calculation results, and precautions for handling sensitive files.