JPG to PDF Converter - FAQ
Why can't I find my images in image chooser?
Your images may not be indexed in MediaStore (MediaStore provides an indexed collection of common media types, such as Audio, Video, and Images, from any attached storage devices in your phone.) yet. Try opening your images in Gallery/Photos once, this will make the images indexed.
How can I choose other image formats such as BMP, GIF or WEBP?
The default image chooser only lists JPG and PNG images for you to choose. To choose other image formats: Tap "FOLDER" button, select the image folder and click "CHOOSE" button. It will add all supported image formats in this folder to conversion queue.
How can I set output file name?
The default output PDF file name uses the first image's file name. You can set your own output file name: Tap "Settings" menu and set "Output Filename" option to "Enter filename manually". You can also change file name after conversion. Tap "Output Files" menu, tap on the file you want to change file name, then tap on "Rename File" pop menu.
Where is the output PDF file saved?
The output PDF file is saved in "PDF" folder in external storage by default. It's usually displayed as "/storage/emulated/0/PDF/", "/sdcard/PDF/" or "/storage/sdcard/PDF/" etc. You can change the output folder: Tap "Settings" menu, tap "Output Folder" and enter your folder name.
How to sort images?
Tap "SORT" button to open a new form. In this form you can drag and drop to change image order or tap menu to sort image files in order of file name, last modification date, file size or numbers in file name. You can tap on an image file to view it with default image viewer. To remove an image file from list, pull it to left and tap "" icon.
How to reduce output PDF file size?
Tap the switch next to "Image Compression" to enable image compression and set image quality. Image quality ranges from 1 to 100. 1 meaning compress for small size, 100 meaning compress for max quality. Some formats, like PNG which is lossless, will ignore the quality setting.
How can I send output PDF file to others?
Tap "Output Files" menu, tap on the file you want to send, then tap on "Share File" pop menu, choose an app such as WhatsApp or Facebook to send file.
Why does the image look bad in PDF?
The image in PDF is actually the same as the image before conversion if compression is not enabled and resampling is not triggered. However, PDF reader apps need to zoom PDF pages to fit phone screen while displaying it, images in PDF may look blurry or pixelated after zooming.
How can I help with language translation?
Volunteers are welcome to translate text in app. To translate text in app, please download the strings.zip file and translate corresponding text in it, then send file back to firstname.lastname@example.org when translation is complete. Thank you!