Convert Studio X vs Recto MD

Convert images, PDFs, audio, and video on your iPhone and iPad. Convert Studio X identifies each file by its actual type and shows only conversions your device can perform. Everything is processed locally—no account and no cloud upload. Import from Photos or Files, adjust the settings you need, then save verified new files to Photos or Files or send them through the system share sheet. === Features === Image Conversion Batch-convert common image formats, with additional formats offered according to the actual capabilities of your device. Resize images, adjust quality, manage transparent backgrounds, and choose to keep all metadata, remove location information, or remove all metadata. PDF Tools Export PDF pages as PNG or JPEG, or combine images and PDFs into a new document in your chosen order. Reorder, rotate, remove, split, and extract pages. You can also create password-protected copies or unlock PDFs you are authorized to process. Audio Conversion Convert common audio formats including MP3, M4A, WAV, and FLAC. Adjust quality, sample rate, and channels when available. The app shows only output options that have been verified on your current device. Video Conversion and Audio Extraction Convert between MP4 and MOV, choose H.264 or HEVC, and select source, 4K, 1080p, 720p, or 480p resolution when applicable. Balance file size and quality with simple presets, and keep the audio or create a silent copy. You can also extract M4A, MP3, WAV, or FLAC audio from video and select a readable audio track when a single video contains more than one. Batch Processing by Category Add multiple files of the same category, apply shared settings, and convert them in order. Follow the progress of each item and the complete batch. A problem with one file does not discard results that have already completed successfully. Local Conversion History Successful results stay in the app's local conversion history until you delete them. Preview results at any time, save them again to Photos when applicable or to Files, share them through the system share sheet, or delete individual results, batches, or all history. Safe Results Convert Studio X never overwrites, modifies, or deletes your original files. Every result is created in the app's own temporary location and reopened for verification before it is made available to save or share. === Designed for iPhone and iPad === • Clear, focused navigation on iPhone for one workflow at a time. • An adaptive split layout on iPad with support for portrait, landscape, and multitasking. • Support for Dark Mode, Dynamic Type, VoiceOver, increased contrast, and Reduce Motion. • Switch the app instantly between System, English, or Simplified Chinese and choose System, Light, or Dark appearance. === Privacy === File conversion takes place entirely on your device. Convert Studio X requires no account, contains no advertising, uses no analytics or telemetry, and has no hidden upload path. The app accesses photos and files only after you choose content or save a result. Diagnostic information does not include file contents, file names, full file paths, passwords, or access credentials. === Platform === Requires iOS 18 or iPadOS 18 or later.

Recto MD opens a Markdown file and gets out of the way. Open one from Files, Mail or Safari with Open in Recto MD, or share it in from any app. On iPadOS and iOS 26, Files > Get Info > Always Open With makes it the default. Reading comes first: pick a file and it is on screen, typeset and ready, nothing to configure. When you want to change something, Edit mode puts the source next to the live preview - side by side on iPad, a Source/Preview switch on iPhone - and Save is explicit, so nothing is written until you ask for it. TYPOGRAPHY FIRST The reading column, the leading and the vertical rhythm are the product. Pinch to zoom the whole page from 50% to 300% - text, measure and margins scale together, the way a browser's page zoom does - the column measure also has three widths, and the page is laid out so a long document stays comfortable rather than merely legible. RENDERS WHAT YOUR DOCUMENTS ACTUALLY CONTAIN - CommonMark and GitHub Flavored Markdown: tables, task lists, strikethrough, autolinks, footnotes - GitHub-style alerts: NOTE, TIP, IMPORTANT, WARNING, CAUTION - Mermaid diagrams, loaded only when a document has one - Mathematics and chemistry, typeset by KaTeX: inline and display LaTeX, and mhchem chemical equations. The delimiters are narrow on purpose, so a price written as $5 stays a price - Syntax-highlighted fenced code blocks, with a copy button - Wide tables scroll inside the reading column, so the page itself never scrolls sideways EDITING, WHEN YOU WANT IT Edit mode puts a source pane beside the live preview - side by side on iPad, a Source/Preview switch on iPhone. Save is explicit, and nothing autosaves in the background. Export the document as a PDF whenever you want a copy to share. FIND YOUR WAY AROUND An outline is generated from the document's headings: a sheet on iPhone, a sidebar on iPad that also holds your recent documents. Search inside a document with a live match count and step through the matches. Recents remembers where you stopped reading and puts you back there. IT UPDATES WHILE YOU READ Change the file somewhere else and the document updates in place - same scroll position, no flash, no reload button to hunt for. If you have unsaved edits, the app stops and asks instead of choosing for you. Turn auto-reload off and you get a "File changed" tap target instead. A THEME EDITOR, NOT A THEME PICKER Duplicate a built-in theme or start from nothing, and tune it in six groups: text (font, scale, line height, spacing, indent, justification); headings (font, weight, an accent color, rules, and a size for each of the six levels); layout (column width by characters, points or percent, a max width, custom margins, a page-card look); sidebar (font size and step per level, row height, indent, background and accent mix); blocks (code font and size, table density and zebra striping, blockquote style, the code syntax palette); and color, down to the selection highlight. Import or export any theme as JSON. OFFLINE, AND PRIVATE BY CONSTRUCTION The app makes no network requests at all. No account, no sign-in, no analytics, no tracking, nothing collected. Your documents are files on your device or in your iCloud Drive, and that is where they stay. BUILT FOR THE PLATFORM Dynamic Type through to the accessibility sizes, VoiceOver reading real document structure, Increase Contrast, Reduce Motion and Reduce Transparency are all honoured. With a hardware keyboard, every navigation shortcut is independently rebindable - pick the key, choose Command, Option or Shift, and the app flags a conflict before you save one - and Open, Find, Find Next, Reload, the zoom commands and Settings are all one keystroke away, listed in the Command-hold sheet. The interface is available in twelve languages, with a System option and a picker for the one you want.