Free JPG to PDF converter. Transform multiple images into PDF documents instantly. No watermark. No download required.
Drop your images to build a PDF
Click to browse or drag & drop
TL;DR — JPG to PDF Converter in 30 seconds
💻 How to Convert JPG to PDF on Mac:
Upload your JPG images to PDFcrest directly in Safari or Chrome on your Mac. No software
installation needed. Works perfectly with MacBook Air, MacBook Pro, and iMac. The converter
automatically processes images and creates a downloadable PDF file.
📱 How to Convert JPG to PDF on iPhone:
Open PDFcrest in Safari on your iPhone or iPad. Tap the upload button to select photos from your
camera roll. The tool converts them instantly into a PDF you can save to Files app or share via
Messages, Email, or AirDrop.
🖥️ How to Convert JPG to PDF on Windows:
Use any browser (Chrome, Edge, Firefox) on your Windows PC. Drag and drop multiple JPG files at
once. The converter merges them into a single PDF without installing software.
📂 Convert Multiple JPG Files to One PDF:
Select all your JPG images at once (hold Ctrl/Cmd while clicking). The tool automatically merges
them into a single PDF document in the order you upload them. Perfect for creating photo albums
or multi-page documents.
Three steps. Under 30 seconds. Files never leave your browser.
Click Browse or drag and drop your JPG, PNG, WEBP, or other image files. Upload multiple images at once — works on desktop, iPhone, and Android.
Check the thumbnails and remove any images you don't want with the × button. Each remaining image becomes one PDF page, in the order you added them.
Click Convert to PDF. Your PDF downloads instantly with all images embedded at full quality — no watermark, no signup required.
Why PDFcrest
Batch conversion, distortion-free pages, no limits, no watermarks — the easiest image to PDF tool online.
Convert JPG to PDF without losing image quality. PDFcrest embeds your images at original resolution so the output PDF looks sharp on every screen and printer.
Convert multiple images to PDF at once. Upload any number of JPG, PNG, or WEBP files and combine them into a single professional PDF in seconds.
JPG to PDF free with no daily conversion limit, no account, and no watermarks. Unlike SmallPDF or ilovePDF, PDFcrest never caps your free conversions.
Convert image to PDF on iPhone directly in Safari — no app download needed. Share from your Camera Roll, convert, and download in under a minute.
Every page is sized to exactly match its source image — no forced A4/Letter shape, so nothing gets stretched, cropped, or letterboxed to fit a different page size.
All uploads use TLS encryption. Your images are processed in an isolated environment and permanently deleted after download.
No account creation, no email verification, no waiting around. Our optimized engine converts even large batches of images to PDF in seconds.
Comparison
| Feature | PDFcrest | Adobe Acrobat Online | SmallPDF / ilovePDF |
|---|---|---|---|
| JPG to PDF — Free | ✓ Always free | ✗ Limited free tier | ✗ 2 tasks/day |
| No Signup Required | ✓ Zero signup | ✗ Adobe account | ✗ Email required |
| No Watermarks | ✓ Never | ✓ | ✗ Free adds watermark |
| Batch Image Conversion | ✓ Unlimited images | ✓ | ~ Limited |
| Works on iPhone | ✓ Mobile-first | ✓ App required | ✓ |
| File Deleted After Download | ✓ Immediately | ~ Varies | ~ 1 hour |
Use Cases
From students to architects — everyone needs to convert images to PDF.
Convert photos to PDF to create a professional portfolio, photo album, or lookbook. Combine dozens of images into a single PDF you can email or share as a link.
Photograph your handwritten notes or printed assignment pages and convert JPG to PDF for online submission. Most university portals require PDF format.
Scan drawings or render images and combine images into PDF for client review. One PDF is easier to share and review than dozens of separate image files.
Photograph paper receipts and convert image to PDF for expense reporting. Many accounting systems only accept PDF attachments.
Photograph signed paper documents and convert JPG to PDF for digital filing. PDFs are the accepted standard for court submissions and legal archives.
Convert photos to PDF on iPhone directly from your Camera Roll using Safari — no scanning app needed. Ideal for quick document creation on the go.
Convert product photos to PDF to build digital lookbooks and price sheets. Popular with e-commerce sellers, manufacturers, and retailers sharing catalogs with buyers.
Workflow Recipes
Converting images is rarely the last step. Here are the tool combinations PDFcrest users chain together most often.
Phone photos taken sideways stay sideways in the PDF, since the page always matches the image. Fix the orientation after converting.
Images are embedded at their original resolution, so a PDF made from several high-res photos can get large. Shrink it before emailing.
Photographed a document instead of scanning it? Convert the photos to a PDF, then make the text inside it searchable.
Since images can't be dragged to reorder yet, convert separate batches in the order you want, then combine the resulting PDFs into one file.
Need to pull pages out as images, edit them, then rebuild the PDF? Go image-to-PDF and PDF-to-image in either direction.
Technical Detail
When you convert a JPG to PDF, PDFcrest reads the image file, determines its pixel dimensions, and embeds it as an image stream inside a new PDF document. Each image becomes one page, and the page is always created at that image's own width and height — there's no A4/Letter picker, so nothing is ever scaled or letterboxed to a different shape.
JPG and PNG files are embedded directly using pdf-lib's native encoders. WEBP, GIF, and BMP images are first drawn onto an in-browser canvas and re-encoded as JPEG (95% quality) before embedding, since those formats aren't natively supported inside a PDF. One side effect: JPEG doesn't support transparency, so if you convert a WEBP, GIF, or BMP that has a transparent background, that transparency won't be preserved in the output — use PNG instead if you need to keep transparent areas intact.
The resulting PDF is standards-compliant (PDF 1.5+) and compatible with all major viewers. You can further compress the PDF to reduce file size or merge it with other PDFs using PDFcrest's free tool suite.
Under the Hood
No black box — this is the literal per-format logic this page runs for every image you upload.
Per-image embedding logic:
if (type === 'image/jpeg' || 'image/jpg') → pdfDoc.embedJpg(bytes) # direct, no re-encode
if (type === 'image/png') → pdfDoc.embedPng(bytes) # direct, no re-encode
else (webp, gif, bmp) → draw to <canvas>, then
canvas.toBlob('image/jpeg', 0.95)
→ pdfDoc.embedJpg(result) # re-encoded, no alpha
Page size (every format):
page = pdfDoc.addPage([image.width, image.height]) # always matches the source image exactly
| Format | What actually happens |
|---|---|
JPG / JPEG | Embedded directly via pdf-lib's embedJpg — no quality loss beyond what the file already had. |
PNG | Embedded directly via pdf-lib's embedPng — transparency is preserved as-is. |
WEBP / GIF / BMP | Not natively supported inside a PDF, so PDFcrest draws the image onto an in-browser canvas and re-encodes it as JPEG at 95% quality before embedding. Any transparency in the source is lost in this conversion. |
Page dimensions | Always set to the image's own pixel width and height — there is no A4/Letter/orientation option, by design, so nothing is ever stretched or padded. |
FAQ
Answers to the most common questions about converting images to PDF
References & Further Reading
Page last updated: · Written and maintained by the PDFcrest team. The per-format embedding logic shown above is taken directly from the code running on this page.