OmniDocThe ratio is wrong after converting PDF to PPT? Check page size before exporting
After converting PDF to PPT, the page is deformed, surrounded by white space or text overflows. Most of the time, the page size of the source file is inconsistent with the proportion of the slide. This article explains how to check the page size and aspect ratio of a PDF, select the slide size accordingly, and check it page by page after exporting.
- main points of this article *
- The ratio of PDF to PPT is misaligned, usually because the page aspect ratio is inconsistent with the slide ratio, which is not necessarily due to a software error.
- Check the page size and aspect ratio of the first page of the PDF before exporting, and note the values
- Select 16:9 or 4:3 for slides, depending on whether the PDF is widescreen landscape, old-school ratio, portrait or nearly square
- After exporting, check the margins, text overflow, and image deformation page by page before deciding whether to redo it.
- Scanned documents must be OCRed and text checked to avoid garbled characters and typos.
Wrong proportions after converting PDF to PPT is a problem that many people have encountered: the original horizontal layout page is stretched or narrowed, with an extra circle of white space around it, the title and picture are squeezed to the edge, or the entire page content is shrunk very small. Many people think that there is a problem with the conversion tool, and they have changed several tools, but the result is still the same.
This article is written for people who need to convert papers, reports, programs or training materials from PDF to PPT. After reading, you will learn: how to see the page size and aspect ratio of the source file before exporting, how to choose a matching slide ratio, and which checks to use after exporting to quickly determine whether to redo it. If you are searching for "how to set the size when converting pdf to ppt", the core idea is to align the proportions first and then talk about exporting.
The root of the problem usually lies at the source. PDF pages have their own width and height, PPT pages also have their own ratio, when the two are not consistent, any conversion has to make a choice: either cut, or leave blank, or zoom. Check first and then export, you can save most of the rework.
# how to set the size from PDF to PPT? Conclusion in a word
- * first determine whether the PDF page is horizontal widescreen, 4:3, vertical or close to square, and then match the slide scale to it; when the proportion is right, most of the dislocation problems will disappear. **
| Your situation. | Recommended practices | Reason |
|---|---|---|
| Landscape widescreen PDFs, such as presentations and wide charts | Slide show 16:9 widescreen | The proportion of the page is close, and the content basically does not need to be scaled or left blank. |
| Old-fashioned 4:3 PDF, or academic conference template | 4:3 for slide show | Avoid large blanks on both sides or content being cut off |
| Vertical A4 documents, such as contracts, report manuscripts | It is not recommended to convert the entire page into a horizontal slide. It can be split into multiple slides and rearranged. | The vertical page is put into the horizontal slide, and the word becomes smaller after zooming. |
| A chart page close to a square | Keep source proportions, or adjust in PDF before exporting | Forced stretching will lead to graphic deformation. |
| Scan PDF | Do OCR first, then check the scale and text, and then export | The page size of the scanned document may not be standardized and the text needs to be recognized. |
First determine what kind of problem it is
| Symptom | Common reasons | How to confirm |
|---|---|---|
| There is a large blank space on the left and right or up and down the page. | The slide scale is wider than that of PDF, and the content is scaled by height. | Calculate the aspect ratio of PDF and PPT pages respectively, and compare the gap. |
| The edge of the text or picture is cut off. | The slide scale is narrower than that of PDF, and the excess is not shown. | Look at the four sides of PPT page by page to see if any content is cut. |
| The whole looks deformed, and the circle becomes an ellipse. | The aspect ratio is forcibly stretched | See if the figures such as circles and squares are distorted. |
| The words are so small that they squeeze into the middle of the page. | The vertical version of PDF is put into the horizontal slide. | Compare the text height of the source page and the PPT page |
| The text becomes garbled or a box | The font is missing, or the scanned piece does not have text recognition. | Try to select a piece of text in PDF, but most of it will be scanned. |
# item-by-item troubleshooting and repair
- View the PDF page size. use the document properties or page settings of the reader to view width and height, usually in millimeters or inches, and then calculate the aspect ratio. For example, the A4 horizontal plate is about 297 mm wide and 210 mm high, with a ratio of about 1.41.
- check whether the proportion of all pages is the same. some PDF have a mixture of horizontal and vertical pages, which need to be processed separately. You cannot rigidly cover all pages with one slide size.
- Select the slide scale. compare with the table in the previous section, choose 16:9 for widescreen content and 4v3 for the old template; if the proportion is very different, split or adjust the page in PDF first.
- Open PDF in the OmniDoc desktop client and export to PowerPoint. before exporting, you can use page operations to delete blank pages, rotate misoriented pages, or split long documents so that each page meets the target ratio.
- check page by page after export. check to see if there are any abnormal blanks on the four sides, whether the text has overflowed, and whether the pictures and charts have been distorted.
- OCR the scanned piece first. complete text recognition before export, spot check a few pages after export, focus on checking numbers, formulas and proper nouns, and correct errors and omissions manually.
- when there is still a proportion problem, go back to the source. * do not stretch the picture or text box directly in PPT, go back to the PDF adjustment page or split the content, and then re-export.
- switch to another computer and turn it on again. * when different computers lack fonts, the layout may change. Check it on another computer before sending it to others.
troubleshooting of garbled codes separately
Garbled code and proportion are two kinds of problems, and the methods are different. If the text becomes a box or symbol, look at the font first: the source file uses a special font, but the exported computer is not installed, the software will be replaced with other fonts, line breaks and widths will change. Re-export after installing the same font can usually be solved. If the PDF is a scanned piece and the text itself is a picture, you must first do OCR, otherwise there is either no text or recognition error in the exported PPT.
# how to avoid the next occurrence
- make a checklist before conversion: page size, aspect ratio, whether it is mixed with horizontal and vertical version, whether it is a scanned piece, all four items are confirmed and then exported. - make the source file according to the target proportion. if this content is finally going to be demonstrated, use a wide-screen page when doing PDF, omitting the zooming later. - leave a safe distance for the edge. text and pictures leave a little space away from the edge of the page and will not be cut off even if there is a slight offset when exporting. - long documents are exported in segments. A 30-page handout is converted into three paragraphs, and each paragraph is checked, which is less time-consuming than page-by-page revision after the whole copy is exported. - keep the source file. * Save it with a new file name after each modification, and you can go back to the previous version if there is a problem.
# frequently asked questions (FAQ)
1. The font has changed after PDF is converted to PPT. Is it a matter of proportion?
Not necessarily. Missing fonts will allow software to replace fonts, and changes in text width will lead to line breaks, which looks like a scale problem. Install the font used in the source file and then re-export it, which can usually be improved.
2. My PDF is 4:3. Could you change it directly to 16:9?
You can choose 16:9, but the original content will not automatically widen, the extra part will be left blank on both sides, or need to be retypesetting. If the content is to be displayed on widescreen, it is recommended to adjust the typesetting before exporting.
3. What about the garbled words after the scanned version of PDF is transferred to PPT?
The text of the scanned piece is in the form of a picture, which needs to be identified by OCR before being exported. Spot check the recognition results, especially numbers, formulas and proper nouns, and correct them manually when errors are found. The results of machine recognition need to be checked manually, and important contents should not be used directly.
4. What should you pay attention to when choosing free conversion tools?
You can focus on the file size limit, whether the export result is watermarked, the privacy description of the uploaded content, and whether the typesetting and page ratio are retained. Check the scale and text page by page after export, regardless of whether the tool is free or not.
# Summary
How to set the size from PDF to PPT, the key is not to adjust the parameters repeatedly, but to check the aspect ratio of the source page first, and then choose the matching slide ratio. After export, check page by page, OCR the scanned piece first and check the text, so that the rework can be reduced to less.
