Blog — File Conversion Tips & Guides
Practical guides and tips for converting, compressing, and managing files on your iPhone. Each post walks you through the process step by step.
Image Guides
How to Convert HEIC to JPG on iPhone (3 Methods)
Learn 3 ways to convert HEIC photos to JPG on iPhone. Convert existing HEIC files with adjustable quality, batch processing, and no uploads required.
How to Remove Background from Photo on iPhone
Remove photo backgrounds on iPhone with on-device AI processing. No internet needed, no uploads. Save as PNG with transparency in seconds.
How to Reduce Photo Size on iPhone Without Losing Quality
Reduce iPhone photo file size with resolution presets, quality control, and format options. Shrink 12MP photos from 10MB to under 1MB on-device.
How to Remove Location Data from Photos on iPhone
Learn how to strip GPS location, camera info, and EXIF metadata from photos on iPhone before sharing. Protect your privacy with secure on-device processing.
How to Batch Convert Photos on iPhone (Multiple Files at Once)
Batch convert multiple photos at once on your iPhone with Transforma. Convert HEIC, JPG, PNG, and more simultaneously with up to 4 concurrent operations.
HEIC vs JPG: What's the Difference and When to Convert
HEIC vs JPG compared: file size, quality, compatibility, and when to convert. HEIC files are 50% smaller but JPG works everywhere. Learn which to use.
How to Save a Photo as PDF on iPhone
Save photos as PDF on iPhone with Transforma. Convert HEIC, JPG, or PNG to PDF at original resolution. Batch select images for multi-page PDF documents.
How to Convert TIFF to JPG on iPhone
Convert TIFF images to JPG on iPhone with Transforma. Reduce file size by 90%+ with adjustable quality. On-device processing, no uploads required.
Video Guides
How to Convert MOV to MP4 on iPhone (Fastest Method)
Convert MOV to MP4 on iPhone instantly with container remux for zero quality loss. No upload, no internet, hardware-accelerated on-device processing.
How to Make a GIF from a Video on iPhone
Create animated GIFs from iPhone videos with custom frame rate, resolution, and trimming. Convert MOV or MP4 clips to GIF entirely on-device.
How to Trim a Video on iPhone Without iMovie
Trim videos on iPhone without iMovie. Set precise start and end points, combine with format conversion, instant lossless trimming when possible.
How to Compress a Video on iPhone (Reduce File Size)
Compress iPhone videos from 350MB to under 80MB. Lower resolution, change codec, adjust bitrate. Hardware-accelerated on-device processing.
MOV vs MP4: Which Video Format Should You Use?
MOV vs MP4 compared: both are containers for the same video codecs. MOV is Apple's default, MP4 is universal. Container remux means zero quality loss.
How to Convert GIF to Video on iPhone
Convert animated GIFs to MP4 or MOV on iPhone with Transforma. Reduce file size by up to 10x while keeping smooth animation. No uploads needed.
Audio Guides
How to Extract Audio from a Video on iPhone
Extract audio tracks from iPhone videos as M4A, MP3, WAV, or FLAC. Strip video, keep audio with bitrate control. Fully on-device, no uploads.
How to Convert WAV to MP3 on iPhone
Convert WAV to MP3 on your iPhone with Transforma. Choose bitrates from 128 to 320kbps, reduce file size by up to 90%, and preserve your audio quality.
How to Convert M4A to MP3 on iPhone
Convert M4A (AAC) audio files to MP3 on your iPhone with Transforma. Choose 128 to 320kbps bitrate, preserve ID3 tags and cover art. No uploads needed.
Document Guides
How to Save a PDF as an Image (JPG or PNG) on iPhone
Convert PDF pages to JPG or PNG images on iPhone. Select page ranges, choose format and quality. On-device rendering with no uploads required.
How to Convert Word to PDF on iPhone
Convert Word documents (DOCX) to PDF on iPhone without Microsoft Word. Preserves formatting, headings, and images. On-device, no uploads needed.
How to Convert PDF to Word (DOCX) on iPhone
Convert PDF to editable Word DOCX on your iPhone with Transforma. Preserves headings, body text, and lists. On-device processing, no subscription needed.
How to Convert ePub to PDF on iPhone
Convert ePub ebooks to PDF on iPhone with Transforma. Preserve chapter structure, images, and formatting. On-device, no uploads required.
How to Convert Markdown to PDF on iPhone
Convert Markdown files to formatted PDF on iPhone with Transforma. Headings, lists, code blocks, and inline formatting rendered beautifully. No uploads.
How to Extract Pages from a PDF on iPhone
Extract specific pages from PDFs on iPhone with Transforma. Select page ranges, output as PDF or images. On-device processing, no uploads required.
Data Guides
How to Convert Excel to CSV on iPhone
Convert Excel XLSX spreadsheets to CSV on your iPhone with Transforma. Formulas evaluate to values, dates use ISO 8601, and output is RFC 4180 compliant.
How to Convert JSON to YAML (and Back) on iPhone
Convert JSON to YAML and YAML to JSON on iPhone with Transforma. Lossless, bidirectional conversion with 2-space indentation. No uploads needed.
How to Convert CSV to JSON on iPhone
Convert CSV spreadsheet data to structured JSON on iPhone with Transforma. RFC 4180 compliant parsing, first row as keys. No uploads, fully on-device.
Guide Guides
How to Open and Extract ZIP Files on iPhone
Open and extract ZIP, TAR, 7z, GZIP, BZ2, and XZ archives on iPhone with Transforma. Secure extraction with path traversal protection and progress tracking.
How to Convert 3D Models to USDZ for AR on iPhone
Learn how to convert OBJ, STL, PLY, and USD 3D models to USDZ on iPhone for AR Quick Look. On-device conversion with Transforma using Model I/O.
Best File Converter Apps for iPhone (2026 Comparison)
Compare the best file converter apps for iPhone in 2026. On-device vs cloud converters, privacy, pricing, and format support reviewed honestly.
How to Convert Files on iPhone Without Uploading to the Cloud
Convert files on iPhone without uploading to any server. Transforma processes everything on-device using Apple frameworks. Fully offline, fully private.