Convertir JPG a PDF Online Gratis
Convierte y une imágenes JPG, PNG y WebP en un único documento PDF profesional al instante. Personaliza márgenes, orientación y tamaños de página sin subir nada a internet.
Drag & drop your JPG/PNG images here
or click to browse files from your computer
How to Convert JPG and PNG Images to PDF (Step-by-Step)
Merge multiple photo receipts, certificates, documents, and graphic scans into a single organized, shareable PDF document:
Click 'Upload Images' or drag multiple JPG, JPEG, and PNG images into the dropzone. You can add dozens of photos simultaneously.
Drag and drop image preview cards to organize the exact sequence of pages. Choose between Portrait or Landscape orientation and select page size (A4, Letter, or Fit to Image).
Select your preferred margin spacing (No Margin, Narrow, or Normal) to ensure full-bleed images or clean document borders.
Click 'Convert to PDF'. The high-speed browser engine stitches your photos into a crisp, multi-page PDF ready for instant download with zero server uploads.
Client-Side Image-to-PDF Compilation & Merging
Merging individual receipts, identification documents, assignment scans, and design mockups into a single, structured PDF file is essential for business reporting, legal submissions, and academic grading.
Our JPG to PDF Converter operates 100% locally in your web browser using the jsPDF document engine. You can merge mixed collections of JPG, PNG, and WebP images into a single vector-compliant PDF document with custom page sizes (A4, US Letter, Auto-Fit), configurable orientation, and adjustable margins in seconds without uploading sensitive documents to external cloud servers.
Need to add digital approvals or drawings to your document? Use our Digital Signature Maker or convert written notes with our Text to PDF Converter.
📚 In-Depth Technical Guide: Learn how client-side canvas rendering prevents blurry scans and preserves 300 DPI clarity: The Complete Guide to Merging JPG to PDF Without Losing Quality →
Batch Merging Multiple JPGs & File Size Guidelines (100 KB, 200 KB, 500 KB)
Many government recruitment portals, university admission forms, and passport/visa portals (like DS-160, UKVI, and civil service applications) enforce strict upload caps requiring your PDF document to stay under 100 KB, 200 KB, or 300 KB.
When combining multiple smartphone photos into a single PDF, multi-megapixel resolutions can quickly inflate the file to over 10 MB. To keep your compiled PDF under strict 200 KB caps without turning document text into blurry pixelated noise:
- Combine Multiple Receipts or ID Cards: Drag and drop all your image scans at once. Use the Up/Down arrows to position the front and back of your ID on pages 1 and 2 in perfect sequence.
- Preserve 300 DPI Text Legibility: Our engine maps raster pixels to vector PDF points without aggressive secondary re-compression, ensuring passport numbers, tax stamps, and signatures remain razor sharp.
- Target Under 200KB File Sizes: If your initial photos are heavy, compress them first using our Image Compressor to exact KB limits, then merge them here into a compact, portal-ready PDF.
How to Convert JPG to PDF on iPhone, Android, and Desktop
📱 Mobile (iPhone & Android)
Tap the upload box to open your camera roll or photo gallery. Select multiple pictures in one tap, choose Auto-Fit or A4, and tap Convert to PDF. Download instantly to your device files without needing any App Store or Google Play utility app.
💻 Desktop (Windows & Mac)
Drag and drop whole folders of JPG, PNG, and WebP files. Easily reorder pages using the sequential controls, adjust page margins for binder hole-punching, and export a clean vector-bound PDF in under 2 seconds.
Standard Page Sizes & Layout Standards
- ISO A4 Standard (595 × 842 pt): The universal international standard for business documentation, government submissions, and academic assignments.
- North American Letter (612 × 792 pt): The standard standard in the United States and Canada.
- Adaptive Auto-Fit: Automatically sizes each PDF page to match the exact aspect ratio and resolution dimensions of the uploaded source photo, eliminating unwanted white borders.
Preguntas Frecuentes (FAQ)
¿Mis fotos o documentos personales se suben a algún servidor externo?
No, bajo ningún concepto. Toda la conversión y unión de archivos se procesa de forma 100% local en la memoria de tu navegador mediante JavaScript. Tus documentos confidenciales, DNI y facturas nunca salen de tu ordenador o móvil.
¿Puedo cambiar el orden de las páginas antes de generar el PDF?
Sí. Puedes utilizar las flechas de subir y bajar junto a cada foto de la lista para ordenar las páginas exactamente como desees antes de descargar el PDF final.
¿Hay algún límite en la cantidad de fotos que puedo unir en un solo PDF?
No hay límites de archivos ni marcas de agua. Puedes combinar tantas imágenes como necesites de forma totalmente gratuita y sin necesidad de registrarte.
¿Qué formatos de imagen son compatibles?
El conversor admite fotografías JPEG (.jpg, .jpeg), imágenes PNG y el formato moderno WebP.