ChangeThisFile vs ILoveIMG and ILovePDF: Which Is Better?

ILoveIMG and ILovePDF are purpose-built tools. They don't try to do everything — they specialize in a specific set of operations on images and PDFs (compress, resize, crop, merge, split, convert, watermark). For those workflows, they're polished and capable.

ChangeThisFile is a different kind of tool: a format converter. Its job is converting files from one format to another across 9 categories. There's overlap (both do image format conversion, both convert to/from PDF), but the tools optimize for different use cases. This comparison helps you understand where each excels.

Quick verdict

For PDF operations (merge, split, compress, protect): ILovePDF is the better choice — it's purpose-built for PDF workflows.

For bulk image manipulation (compress, resize, crop, watermark): ILoveIMG is excellent and specialized.

For format conversion across categories (image, video, audio, ebook, archive, data, font): ChangeThisFile covers more formats and more route pairs.

For privacy (client-side processing): ChangeThisFile. 161 routes run in the browser with no upload. ILoveIMG/ILovePDF process files on their servers.

For free API access: ChangeThisFile. 1,000 conversions/month, no card.

Pricing comparison

ILovePDF and ILoveIMG are separate subscriptions even though they're from the same company. If you need both, you either pay twice or look for a tool that covers both categories.

Feature comparison

Format coverage

ILoveIMG supports image format conversions (JPG, PNG, GIF, WebP, BMP, TIFF, SVG) plus image manipulation operations (compress, resize, crop, rotate, watermark). ILovePDF handles PDF operations (compress, merge, split, rotate, unlock, sign, edit) plus conversions to/from PDF with Word, Excel, PowerPoint, and JPG.

ChangeThisFile covers 690 routes across 9 format categories: image, document, spreadsheet, video, audio, ebook, archive, data, and font. The overlap with ILoveIMG is on image format conversion; the overlap with ILovePDF is on document-to-PDF routes. Everything outside those overlaps — video, audio, ebooks, archives, data formats, fonts — is ChangeThisFile-only territory.

Privacy and data handling

ILoveIMG and ILovePDF are server-side tools. Every file — including simple image format conversions — uploads to their servers. They state files are deleted after an hour (check their current policy).

ChangeThisFile processes 161 routes in the browser. All major image conversions (JPG, PNG, WebP, HEIC, GIF, BMP, AVIF, ICO, SVG, TIFF) happen entirely client-side — no server involved. For users converting work documents or personal photos, this architectural difference means your files never leave your device for those formats.

For document conversions (DOCX to PDF, etc.), both tools are server-side. ChangeThisFile's Express backend auto-deletes files after conversion.

API and developer experience

ILovePDF offers a developer API with endpoints for their PDF operations — compress, merge, split, convert, etc. The API requires a paid plan and uses a job-based model. Their SDKs cover PHP, Node.js, Java, and Python.

ChangeThisFile's API is a single endpoint, free to start:

curl -X POST https://changethisfile.com/v1/convert \
  -H "Authorization: Bearer ctf_sk_your_key" \
  -F "file=@photo.heic" \
  -F "source=heic" \
  -F "target=jpg" \
  --output photo.jpg

1,000 free conversions/month, no card. Get a key at changethisfile.com/v1/keys/free. If you specifically need PDF merge/split/compress in your API integration, ILovePDF's API is purpose-built for that and worth the cost.

When to choose which

ILovePDF and ILoveIMG are genuinely excellent at what they do. If your workflow is PDF-centric or involves bulk image operations, they're hard to beat. For format conversion across a broader range of file types — or for image conversions where you don't want files leaving your device — ChangeThisFile covers more ground. Use both if your workflow calls for it; they complement rather than replace each other.